diff --git a/astrbot/core/backup/exporter.py b/astrbot/core/backup/exporter.py
index 77102c080..51c4a4650 100644
--- a/astrbot/core/backup/exporter.py
+++ b/astrbot/core/backup/exporter.py
@@ -447,6 +447,7 @@ def _generate_manifest(
             "version": BACKUP_MANIFEST_VERSION,
             "astrbot_version": VERSION,
             "exported_at": datetime.now(timezone.utc).isoformat(),
+            "origin": "exported",  # 标记备份来源：exported=本实例导出, uploaded=用户上传
             "schema_version": {
                 "main_db": "v4",
                 "kb_db": "v1",
diff --git a/astrbot/dashboard/routes/backup.py b/astrbot/dashboard/routes/backup.py
index bfd7b047d..a7c29de0b 100644
--- a/astrbot/dashboard/routes/backup.py
+++ b/astrbot/dashboard/routes/backup.py
@@ -1,13 +1,18 @@
 """备份管理 API 路由"""
 
 import asyncio
+import json
 import os
 import re
+import shutil
+import time
 import traceback
 import uuid
+import zipfile
 from datetime import datetime
 from pathlib import Path
 
+import jwt
 from quart import request, send_file
 
 from astrbot.core import logger
@@ -22,6 +27,10 @@
 
 from .route import Response, Route, RouteContext
 
+# 分片上传常量
+CHUNK_SIZE = 1024 * 1024  # 1MB
+UPLOAD_EXPIRE_SECONDS = 3600  # 上传会话过期时间（1小时）
+
 
 def secure_filename(filename: str) -> str:
     """清洗文件名，移除路径遍历字符和危险字符
@@ -54,17 +63,17 @@ def secure_filename(filename: str) -> str:
 
 
 def generate_unique_filename(original_filename: str) -> str:
-    """生成唯一的文件名，添加时间戳前缀
+    """生成唯一的文件名，在原文件名后添加时间戳后缀避免重名
 
     Args:
         original_filename: 原始文件名（已清洗）
 
     Returns:
-        唯一的文件名
+        添加了时间戳后缀的唯一文件名，格式为 {原文件名}_{YYYYMMDD_HHMMSS}.{扩展名}
     """
-    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
     name, ext = os.path.splitext(original_filename)
-    return f"uploaded_{timestamp}_{name}{ext}"
+    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+    return f"{name}_{timestamp}{ext}"
 
 
 class BackupRoute(Route):
@@ -84,21 +93,34 @@ def __init__(
         self.core_lifecycle = core_lifecycle
         self.backup_dir = get_astrbot_backups_path()
         self.data_dir = get_astrbot_data_path()
+        self.chunks_dir = os.path.join(self.backup_dir, ".chunks")
 
         # 任务状态跟踪
         self.backup_tasks: dict[str, dict] = {}
         self.backup_progress: dict[str, dict] = {}
 
+        # 分片上传会话跟踪
+        # upload_id -> {filename, total_chunks, received_chunks, last_activity, chunk_dir}
+        self.upload_sessions: dict[str, dict] = {}
+
+        # 后台清理任务句柄
+        self._cleanup_task: asyncio.Task | None = None
+
         # 注册路由
         self.routes = {
             "/backup/list": ("GET", self.list_backups),
             "/backup/export": ("POST", self.export_backup),
-            "/backup/upload": ("POST", self.upload_backup),  # 上传文件
+            "/backup/upload": ("POST", self.upload_backup),  # 上传文件（兼容小文件）
+            "/backup/upload/init": ("POST", self.upload_init),  # 分片上传初始化
+            "/backup/upload/chunk": ("POST", self.upload_chunk),  # 上传分片
+            "/backup/upload/complete": ("POST", self.upload_complete),  # 完成分片上传
+            "/backup/upload/abort": ("POST", self.upload_abort),  # 取消上传
             "/backup/check": ("POST", self.check_backup),  # 预检查
             "/backup/import": ("POST", self.import_backup),  # 确认导入
             "/backup/progress": ("GET", self.get_progress),
             "/backup/download": ("GET", self.download_backup),
             "/backup/delete": ("POST", self.delete_backup),
+            "/backup/rename": ("POST", self.rename_backup),  # 重命名备份
         }
         self.register_routes()
 
@@ -173,7 +195,81 @@ async def _callback(stage: str, current: int, total: int, message: str = ""):
 
         return _callback
 
+    def _ensure_cleanup_task_started(self):
+        """确保后台清理任务已启动（在异步上下文中延迟启动）"""
+        if self._cleanup_task is None or self._cleanup_task.done():
+            try:
+                self._cleanup_task = asyncio.create_task(
+                    self._cleanup_expired_uploads()
+                )
+            except RuntimeError:
+                # 如果没有运行中的事件循环，跳过（等待下次异步调用时启动）
+                pass
+
+    async def _cleanup_expired_uploads(self):
+        """定期清理过期的上传会话
+
+        基于 last_activity 字段判断过期，避免清理活跃的上传会话。
+        """
+        while True:
+            try:
+                await asyncio.sleep(300)  # 每5分钟检查一次
+                current_time = time.time()
+                expired_sessions = []
+
+                for upload_id, session in self.upload_sessions.items():
+                    # 使用 last_activity 判断过期，而非 created_at
+                    last_activity = session.get("last_activity", session["created_at"])
+                    if current_time - last_activity > UPLOAD_EXPIRE_SECONDS:
+                        expired_sessions.append(upload_id)
+
+                for upload_id in expired_sessions:
+                    await self._cleanup_upload_session(upload_id)
+                    logger.info(f"清理过期的上传会话: {upload_id}")
+
+            except asyncio.CancelledError:
+                # 任务被取消，正常退出
+                break
+            except Exception as e:
+                logger.error(f"清理过期上传会话失败: {e}")
+
+    async def _cleanup_upload_session(self, upload_id: str):
+        """清理上传会话"""
+        if upload_id in self.upload_sessions:
+            session = self.upload_sessions[upload_id]
+            chunk_dir = session.get("chunk_dir")
+            if chunk_dir and os.path.exists(chunk_dir):
+                try:
+                    shutil.rmtree(chunk_dir)
+                except Exception as e:
+                    logger.warning(f"清理分片目录失败: {e}")
+            del self.upload_sessions[upload_id]
+
+    def _get_backup_manifest(self, zip_path: str) -> dict | None:
+        """从备份文件读取 manifest.json
+
+        Args:
+            zip_path: ZIP 文件路径
+
+        Returns:
+            dict | None: manifest 内容，如果不是有效备份则返回 None
+        """
+        try:
+            with zipfile.ZipFile(zip_path, "r") as zf:
+                if "manifest.json" in zf.namelist():
+                    manifest_data = zf.read("manifest.json")
+                    return json.loads(manifest_data.decode("utf-8"))
+                else:
+                    # 没有 manifest.json，不是有效的 AstrBot 备份
+                    return None
+        except Exception as e:
+            logger.debug(f"读取备份 manifest 失败: {e}")
+        return None  # 无法读取，不是有效备份
+
     async def list_backups(self):
+        # 确保后台清理任务已启动
+        self._ensure_cleanup_task_started()
+
         """获取备份列表
 
         Query 参数:
@@ -190,16 +286,34 @@ async def list_backups(self):
             # 获取所有备份文件
             backup_files = []
             for filename in os.listdir(self.backup_dir):
-                if filename.endswith(".zip") and filename.startswith("astrbot_backup_"):
-                    file_path = os.path.join(self.backup_dir, filename)
-                    stat = os.stat(file_path)
-                    backup_files.append(
-                        {
-                            "filename": filename,
-                            "size": stat.st_size,
-                            "created_at": stat.st_mtime,
-                        }
-                    )
+                # 只处理 .zip 文件，排除隐藏文件和目录
+                if not filename.endswith(".zip") or filename.startswith("."):
+                    continue
+
+                file_path = os.path.join(self.backup_dir, filename)
+                if not os.path.isfile(file_path):
+                    continue
+
+                # 读取 manifest.json 获取备份信息
+                # 如果返回 None，说明不是有效的 AstrBot 备份，跳过
+                manifest = self._get_backup_manifest(file_path)
+                if manifest is None:
+                    logger.debug(f"跳过无效备份文件: {filename}")
+                    continue
+
+                stat = os.stat(file_path)
+                backup_files.append(
+                    {
+                        "filename": filename,
+                        "size": stat.st_size,
+                        "created_at": stat.st_mtime,
+                        "type": manifest.get(
+                            "origin", "exported"
+                        ),  # 老版本没有 origin 默认为 exported
+                        "astrbot_version": manifest.get("astrbot_version", "未知"),
+                        "exported_at": manifest.get("exported_at"),
+                    }
+                )
 
             # 按创建时间倒序排序
             backup_files.sort(key=lambda x: x["created_at"], reverse=True)
@@ -345,6 +459,309 @@ async def upload_backup(self):
             logger.error(traceback.format_exc())
             return Response().error(f"上传备份文件失败: {e!s}").__dict__
 
+    async def upload_init(self):
+        """初始化分片上传
+
+        创建一个上传会话，返回 upload_id 供后续分片上传使用。
+
+        JSON Body:
+        - filename: 原始文件名
+        - total_size: 文件总大小（字节）
+
+        返回:
+        - upload_id: 上传会话 ID
+        - chunk_size: 分片大小（由后端决定）
+        - total_chunks: 分片总数（由后端根据 total_size 和 chunk_size 计算）
+        """
+        try:
+            data = await request.json
+            filename = data.get("filename")
+            total_size = data.get("total_size", 0)
+
+            if not filename:
+                return Response().error("缺少 filename 参数").__dict__
+
+            if not filename.endswith(".zip"):
+                return Response().error("请上传 ZIP 格式的备份文件").__dict__
+
+            if total_size <= 0:
+                return Response().error("无效的文件大小").__dict__
+
+            # 由后端计算分片总数，确保前后端一致
+            import math
+
+            total_chunks = math.ceil(total_size / CHUNK_SIZE)
+
+            # 生成上传 ID
+            upload_id = str(uuid.uuid4())
+
+            # 创建分片存储目录
+            chunk_dir = os.path.join(self.chunks_dir, upload_id)
+            Path(chunk_dir).mkdir(parents=True, exist_ok=True)
+
+            # 清洗文件名
+            safe_filename = secure_filename(filename)
+            unique_filename = generate_unique_filename(safe_filename)
+
+            # 创建上传会话
+            current_time = time.time()
+            self.upload_sessions[upload_id] = {
+                "filename": unique_filename,
+                "original_filename": filename,
+                "total_size": total_size,
+                "total_chunks": total_chunks,
+                "received_chunks": set(),
+                "created_at": current_time,
+                "last_activity": current_time,  # 用于判断会话是否活跃
+                "chunk_dir": chunk_dir,
+            }
+
+            logger.info(
+                f"初始化分片上传: upload_id={upload_id}, "
+                f"filename={unique_filename}, total_chunks={total_chunks}"
+            )
+
+            return (
+                Response()
+                .ok(
+                    {
+                        "upload_id": upload_id,
+                        "chunk_size": CHUNK_SIZE,
+                        "total_chunks": total_chunks,
+                        "filename": unique_filename,
+                    }
+                )
+                .__dict__
+            )
+        except Exception as e:
+            logger.error(f"初始化分片上传失败: {e}")
+            logger.error(traceback.format_exc())
+            return Response().error(f"初始化分片上传失败: {e!s}").__dict__
+
+    async def upload_chunk(self):
+        """上传分片
+
+        上传单个分片数据。
+
+        Form Data:
+        - upload_id: 上传会话 ID
+        - chunk_index: 分片索引（从 0 开始）
+        - chunk: 分片数据
+
+        返回:
+        - received: 已接收的分片数量
+        - total: 分片总数
+        """
+        try:
+            form = await request.form
+            files = await request.files
+
+            upload_id = form.get("upload_id")
+            chunk_index_str = form.get("chunk_index")
+
+            if not upload_id or chunk_index_str is None:
+                return Response().error("缺少必要参数").__dict__
+
+            try:
+                chunk_index = int(chunk_index_str)
+            except ValueError:
+                return Response().error("无效的分片索引").__dict__
+
+            if "chunk" not in files:
+                return Response().error("缺少分片数据").__dict__
+
+            # 验证上传会话
+            if upload_id not in self.upload_sessions:
+                return Response().error("上传会话不存在或已过期").__dict__
+
+            session = self.upload_sessions[upload_id]
+
+            # 验证分片索引
+            if chunk_index < 0 or chunk_index >= session["total_chunks"]:
+                return Response().error("分片索引超出范围").__dict__
+
+            # 保存分片
+            chunk_file = files["chunk"]
+            chunk_path = os.path.join(session["chunk_dir"], f"{chunk_index}.part")
+            await chunk_file.save(chunk_path)
+
+            # 记录已接收的分片，并更新最后活动时间
+            session["received_chunks"].add(chunk_index)
+            session["last_activity"] = time.time()  # 刷新活动时间，防止活跃上传被清理
+
+            received_count = len(session["received_chunks"])
+            total_chunks = session["total_chunks"]
+
+            logger.debug(
+                f"接收分片: upload_id={upload_id}, "
+                f"chunk={chunk_index + 1}/{total_chunks}"
+            )
+
+            return (
+                Response()
+                .ok(
+                    {
+                        "received": received_count,
+                        "total": total_chunks,
+                        "chunk_index": chunk_index,
+                    }
+                )
+                .__dict__
+            )
+        except Exception as e:
+            logger.error(f"上传分片失败: {e}")
+            logger.error(traceback.format_exc())
+            return Response().error(f"上传分片失败: {e!s}").__dict__
+
+    def _mark_backup_as_uploaded(self, zip_path: str) -> None:
+        """修改备份文件的 manifest.json，将 origin 设置为 uploaded
+
+        使用 zipfile 的 append 模式添加新的 manifest.json，
+        ZIP 规范中后添加的同名文件会覆盖先前的文件。
+
+        Args:
+            zip_path: ZIP 文件路径
+        """
+        try:
+            # 读取原有 manifest
+            manifest = {"origin": "uploaded", "uploaded_at": datetime.now().isoformat()}
+            with zipfile.ZipFile(zip_path, "r") as zf:
+                if "manifest.json" in zf.namelist():
+                    manifest_data = zf.read("manifest.json")
+                    manifest = json.loads(manifest_data.decode("utf-8"))
+                    manifest["origin"] = "uploaded"
+                    manifest["uploaded_at"] = datetime.now().isoformat()
+
+            # 使用 append 模式添加新的 manifest.json
+            # ZIP 规范中，后添加的同名文件会覆盖先前的
+            with zipfile.ZipFile(zip_path, "a") as zf:
+                new_manifest = json.dumps(manifest, ensure_ascii=False, indent=2)
+                zf.writestr("manifest.json", new_manifest)
+
+            logger.debug(f"已标记备份为上传来源: {zip_path}")
+        except Exception as e:
+            logger.warning(f"标记备份来源失败: {e}")
+
+    async def upload_complete(self):
+        """完成分片上传
+
+        合并所有分片为完整文件。
+
+        JSON Body:
+        - upload_id: 上传会话 ID
+
+        返回:
+        - filename: 合并后的文件名
+        - size: 文件大小
+        """
+        try:
+            data = await request.json
+            upload_id = data.get("upload_id")
+
+            if not upload_id:
+                return Response().error("缺少 upload_id 参数").__dict__
+
+            # 验证上传会话
+            if upload_id not in self.upload_sessions:
+                return Response().error("上传会话不存在或已过期").__dict__
+
+            session = self.upload_sessions[upload_id]
+
+            # 检查是否所有分片都已接收
+            received = session["received_chunks"]
+            total = session["total_chunks"]
+
+            if len(received) != total:
+                missing = set(range(total)) - received
+                return (
+                    Response()
+                    .error(f"分片不完整，缺少: {sorted(missing)[:10]}...")
+                    .__dict__
+                )
+
+            # 合并分片
+            chunk_dir = session["chunk_dir"]
+            filename = session["filename"]
+
+            Path(self.backup_dir).mkdir(parents=True, exist_ok=True)
+            output_path = os.path.join(self.backup_dir, filename)
+
+            try:
+                with open(output_path, "wb") as outfile:
+                    for i in range(total):
+                        chunk_path = os.path.join(chunk_dir, f"{i}.part")
+                        with open(chunk_path, "rb") as chunk_file:
+                            # 分块读取，避免内存溢出
+                            while True:
+                                data_block = chunk_file.read(8192)
+                                if not data_block:
+                                    break
+                                outfile.write(data_block)
+
+                file_size = os.path.getsize(output_path)
+
+                # 标记备份为上传来源（修改 manifest.json 中的 origin 字段）
+                self._mark_backup_as_uploaded(output_path)
+
+                logger.info(
+                    f"分片上传完成: {filename}, size={file_size}, chunks={total}"
+                )
+
+                # 清理分片目录
+                await self._cleanup_upload_session(upload_id)
+
+                return (
+                    Response()
+                    .ok(
+                        {
+                            "filename": filename,
+                            "original_filename": session["original_filename"],
+                            "size": file_size,
+                        }
+                    )
+                    .__dict__
+                )
+            except Exception as e:
+                # 如果合并失败，删除不完整的文件
+                if os.path.exists(output_path):
+                    os.remove(output_path)
+                raise e
+
+        except Exception as e:
+            logger.error(f"完成分片上传失败: {e}")
+            logger.error(traceback.format_exc())
+            return Response().error(f"完成分片上传失败: {e!s}").__dict__
+
+    async def upload_abort(self):
+        """取消分片上传
+
+        取消上传并清理已上传的分片。
+
+        JSON Body:
+        - upload_id: 上传会话 ID
+        """
+        try:
+            data = await request.json
+            upload_id = data.get("upload_id")
+
+            if not upload_id:
+                return Response().error("缺少 upload_id 参数").__dict__
+
+            if upload_id not in self.upload_sessions:
+                # 会话已不存在，可能已过期或已完成
+                return Response().ok(message="上传已取消").__dict__
+
+            # 清理会话
+            await self._cleanup_upload_session(upload_id)
+
+            logger.info(f"取消分片上传: {upload_id}")
+
+            return Response().ok(message="上传已取消").__dict__
+        except Exception as e:
+            logger.error(f"取消上传失败: {e}")
+            logger.error(traceback.format_exc())
+            return Response().error(f"取消上传失败: {e!s}").__dict__
+
     async def check_backup(self):
         """预检查备份文件
 
@@ -537,12 +954,33 @@ async def download_backup(self):
 
         Query 参数:
         - filename: 备份文件名 (必填)
+        - token: JWT token (必填，用于浏览器原生下载鉴权)
+
+        注意: 此路由已被添加到 auth_middleware 白名单中，
+              使用 URL 参数中的 token 进行鉴权，以支持浏览器原生下载。
         """
         try:
             filename = request.args.get("filename")
+            token = request.args.get("token")
+
             if not filename:
                 return Response().error("缺少参数 filename").__dict__
 
+            if not token:
+                return Response().error("缺少参数 token").__dict__
+
+            # 验证 JWT token
+            try:
+                jwt_secret = self.config.get("dashboard", {}).get("jwt_secret")
+                if not jwt_secret:
+                    return Response().error("服务器配置错误").__dict__
+
+                jwt.decode(token, jwt_secret, algorithms=["HS256"])
+            except jwt.ExpiredSignatureError:
+                return Response().error("Token 已过期，请刷新页面后重试").__dict__
+            except jwt.InvalidTokenError:
+                return Response().error("Token 无效").__dict__
+
             # 安全检查 - 防止路径遍历
             if ".." in filename or "/" in filename or "\\" in filename:
                 return Response().error("无效的文件名").__dict__
@@ -587,3 +1025,69 @@ async def delete_backup(self):
             logger.error(f"删除备份失败: {e}")
             logger.error(traceback.format_exc())
             return Response().error(f"删除备份失败: {e!s}").__dict__
+
+    async def rename_backup(self):
+        """重命名备份文件
+
+        Body:
+        - filename: 当前文件名 (必填)
+        - new_name: 新文件名 (必填，不含扩展名)
+        """
+        try:
+            data = await request.json
+            filename = data.get("filename")
+            new_name = data.get("new_name")
+
+            if not filename:
+                return Response().error("缺少参数 filename").__dict__
+
+            if not new_name:
+                return Response().error("缺少参数 new_name").__dict__
+
+            # 安全检查 - 防止路径遍历
+            if ".." in filename or "/" in filename or "\\" in filename:
+                return Response().error("无效的文件名").__dict__
+
+            # 清洗新文件名（移除路径和危险字符）
+            new_name = secure_filename(new_name)
+
+            # 移除新文件名中的扩展名（如果有的话）
+            if new_name.endswith(".zip"):
+                new_name = new_name[:-4]
+
+            # 验证新文件名不为空
+            if not new_name or new_name.replace("_", "") == "":
+                return Response().error("新文件名无效").__dict__
+
+            # 强制使用 .zip 扩展名
+            new_filename = f"{new_name}.zip"
+
+            # 检查原文件是否存在
+            old_path = os.path.join(self.backup_dir, filename)
+            if not os.path.exists(old_path):
+                return Response().error("备份文件不存在").__dict__
+
+            # 检查新文件名是否已存在
+            new_path = os.path.join(self.backup_dir, new_filename)
+            if os.path.exists(new_path):
+                return Response().error(f"文件名 '{new_filename}' 已存在").__dict__
+
+            # 执行重命名
+            os.rename(old_path, new_path)
+
+            logger.info(f"备份文件重命名: {filename} -> {new_filename}")
+
+            return (
+                Response()
+                .ok(
+                    {
+                        "old_filename": filename,
+                        "new_filename": new_filename,
+                    }
+                )
+                .__dict__
+            )
+        except Exception as e:
+            logger.error(f"重命名备份失败: {e}")
+            logger.error(traceback.format_exc())
+            return Response().error(f"重命名备份失败: {e!s}").__dict__
diff --git a/astrbot/dashboard/server.py b/astrbot/dashboard/server.py
index f778a5049..ad83c4886 100644
--- a/astrbot/dashboard/server.py
+++ b/astrbot/dashboard/server.py
@@ -115,6 +115,7 @@ async def auth_middleware(self):
             "/api/file",
             "/api/platform/webhook",
             "/api/stat/start-time",
+            "/api/backup/download",  # 备份下载使用 URL 参数传递 token
         ]
         if any(request.path.startswith(prefix) for prefix in allowed_endpoints):
             return None
diff --git a/dashboard/src/components/shared/BackupDialog.vue b/dashboard/src/components/shared/BackupDialog.vue
index 629e4e559..eb0327e4e 100644
--- a/dashboard/src/components/shared/BackupDialog.vue
+++ b/dashboard/src/components/shared/BackupDialog.vue
@@ -110,9 +110,23 @@
 
                         <!-- 步骤1.5: 上传中 -->
                         <div v-else-if="importStatus === 'uploading'" class="text-center py-8">
-                            <v-progress-circular indeterminate color="primary" size="64" class="mb-4"></v-progress-circular>
+                            <v-icon size="64" color="primary" class="mb-4">mdi-cloud-upload</v-icon>
                             <h3 class="mb-4">{{ t('features.settings.backup.import.uploading') }}</h3>
-                            <p class="text-grey">{{ t('features.settings.backup.import.uploadWait') }}</p>
+                            <p class="text-grey mb-2">
+                                {{ uploadProgress.message || t('features.settings.backup.import.uploadWait') }}
+                            </p>
+                            <p class="text-grey-darken-1 mb-4">
+                                {{ formatFileSize(uploadProgress.uploaded) }} / {{ formatFileSize(uploadProgress.total) }}
+                                ({{ uploadProgress.percent }}%)
+                            </p>
+                            <v-progress-linear
+                                :model-value="uploadProgress.percent"
+                                :max="100"
+                                class="mt-2"
+                                color="primary"
+                                height="8"
+                                rounded
+                            ></v-progress-linear>
                         </div>
 
                         <!-- 步骤2: 确认导入 -->
@@ -242,15 +256,38 @@
                                 :key="backup.filename"
                             >
                                 <template v-slot:prepend>
-                                    <v-icon color="primary">mdi-zip-box</v-icon>
+                                    <v-icon :color="backup.type === 'uploaded' ? 'orange' : 'primary'">
+                                        {{ backup.type === 'uploaded' ? 'mdi-upload' : 'mdi-zip-box' }}
+                                    </v-icon>
                                 </template>
 
                                 <v-list-item-title>{{ backup.filename }}</v-list-item-title>
                                 <v-list-item-subtitle>
                                     {{ formatFileSize(backup.size) }} · {{ formatDate(backup.created_at) }}
+                                    <v-chip size="x-small" color="primary" variant="tonal" class="ml-2">
+                                        v{{ backup.astrbot_version }}
+                                    </v-chip>
+                                    <v-chip v-if="backup.type === 'uploaded'" size="x-small" color="orange" variant="tonal" class="ml-1">
+                                        {{ t('features.settings.backup.list.uploaded') }}
+                                    </v-chip>
                                 </v-list-item-subtitle>
 
                                 <template v-slot:append>
+                                    <v-btn
+                                        icon="mdi-restore"
+                                        variant="text"
+                                        size="small"
+                                        color="success"
+                                        :title="t('features.settings.backup.list.restore')"
+                                        @click="restoreFromList(backup.filename)"
+                                    ></v-btn>
+                                    <v-btn
+                                        icon="mdi-pencil"
+                                        variant="text"
+                                        size="small"
+                                        :title="t('features.settings.backup.list.rename')"
+                                        @click="openRenameDialog(backup.filename)"
+                                    ></v-btn>
                                     <v-btn icon="mdi-download" variant="text" size="small" @click="downloadBackup(backup.filename)"></v-btn>
                                     <v-btn icon="mdi-delete" variant="text" size="small" color="error" @click="deleteBackup(backup.filename)"></v-btn>
                                 </template>
@@ -263,6 +300,12 @@
                                 {{ t('features.settings.backup.list.refresh') }}
                             </v-btn>
                         </div>
+
+                        <!-- 提示信息 -->
+                        <p class="text-caption text-grey text-center mt-4">
+                            <v-icon size="small" class="mr-1">mdi-information-outline</v-icon>
+                            {{ t('features.settings.backup.list.ftpHint') }}
+                        </p>
                     </v-window-item>
                 </v-window>
             </v-card-text>
@@ -276,6 +319,50 @@
         </v-card>
     </v-dialog>
 
+    <!-- 重命名对话框 -->
+    <v-dialog v-model="renameDialogOpen" max-width="450" persistent>
+        <v-card>
+            <v-card-title>
+                <v-icon class="mr-2">mdi-pencil</v-icon>
+                {{ t('features.settings.backup.list.renameTitle') }}
+            </v-card-title>
+            <v-card-text>
+                <v-text-field
+                    v-model="renameNewName"
+                    :label="t('features.settings.backup.list.newName')"
+                    :rules="[renameValidationRule]"
+                    :error-messages="renameError"
+                    variant="outlined"
+                    density="comfortable"
+                    autofocus
+                    @keyup.enter="confirmRename"
+                >
+                    <template v-slot:append-inner>
+                        <span class="text-grey">.zip</span>
+                    </template>
+                </v-text-field>
+                <p class="text-caption text-grey mt-1">
+                    {{ t('features.settings.backup.list.renameHint') }}
+                </p>
+            </v-card-text>
+            <v-card-actions>
+                <v-spacer></v-spacer>
+                <v-btn color="grey" variant="text" @click="closeRenameDialog">
+                    {{ t('core.common.cancel') }}
+                </v-btn>
+                <v-btn
+                    color="primary"
+                    variant="flat"
+                    @click="confirmRename"
+                    :loading="renameLoading"
+                    :disabled="!renameNewName || !!renameError"
+                >
+                    {{ t('core.common.confirm') }}
+                </v-btn>
+            </v-card-actions>
+        </v-card>
+    </v-dialog>
+
     <WaitingForRestart ref="wfr"></WaitingForRestart>
 </template>
 
@@ -307,13 +394,33 @@ const importError = ref('')
 const uploadedFilename = ref('')  // 已上传的文件名
 const checkResult = ref(null)     // 预检查结果
 
+// 分片上传状态
+const CONCURRENT_UPLOADS = 5     // 并发上传数
+const uploadId = ref('')
+const chunkSize = ref(0)         // 分片大小（从后端获取）
+const uploadProgress = ref({
+    uploaded: 0,
+    total: 0,
+    percent: 0,
+    message: ''
+})
+
 // 备份列表
 const loadingList = ref(false)
 const backupList = ref([])
 
+// 重命名对话框状态
+const renameDialogOpen = ref(false)
+const renameOldFilename = ref('')
+const renameNewName = ref('')
+const renameLoading = ref(false)
+const renameError = ref('')
+
 // 计算属性
 const isProcessing = computed(() => {
-    return exportStatus.value === 'processing' || importStatus.value === 'processing'
+    return exportStatus.value === 'processing' ||
+           importStatus.value === 'processing' ||
+           importStatus.value === 'uploading'
 })
 
 // 版本检查相关的计算属性
@@ -440,28 +547,127 @@ const resetExport = () => {
     exportError.value = ''
 }
 
+/**
+ * 并发上传分片
+ *
+ * 使用并发控制同时上传多个分片，提升上传速度。
+ * 后端按分片索引命名文件（如 0.part, 1.part），合并时按顺序读取，
+ * 因此分片到达顺序不影响最终结果。
+ */
+const uploadChunksInParallel = async (file, totalChunks, currentUploadId, currentChunkSize) => {
+    // 跟踪已完成的字节数（使用原子操作避免并发问题）
+    let completedBytes = 0
+    const chunkSizes = []
+    
+    // 预计算每个分片的大小（使用后端返回的 chunk_size）
+    for (let i = 0; i < totalChunks; i++) {
+        const start = i * currentChunkSize
+        const end = Math.min(start + currentChunkSize, file.size)
+        chunkSizes[i] = end - start
+    }
+
+    // 上传单个分片的函数
+    const uploadSingleChunk = async (chunkIndex) => {
+        const start = chunkIndex * currentChunkSize
+        const end = Math.min(start + currentChunkSize, file.size)
+        const chunk = file.slice(start, end)
+
+        const formData = new FormData()
+        formData.append('upload_id', currentUploadId)
+        formData.append('chunk_index', chunkIndex.toString())
+        formData.append('chunk', chunk)
+
+        const response = await axios.post('/api/backup/upload/chunk', formData, {
+            headers: { 'Content-Type': 'multipart/form-data' }
+        })
+
+        if (response.data.status !== 'ok') {
+            throw new Error(response.data.message)
+        }
+
+        // 更新进度（累加已完成字节）
+        completedBytes += chunkSizes[chunkIndex]
+        uploadProgress.value.uploaded = completedBytes
+        uploadProgress.value.percent = Math.round((completedBytes / file.size) * 100)
+
+        return response
+    }
+
+    // 创建分片索引队列
+    const pendingChunks = Array.from({ length: totalChunks }, (_, i) => i)
+    const activePromises = []
+
+    // 处理队列中的分片
+    while (pendingChunks.length > 0 || activePromises.length > 0) {
+        // 填充并发槽位
+        while (pendingChunks.length > 0 && activePromises.length < CONCURRENT_UPLOADS) {
+            const chunkIndex = pendingChunks.shift()
+            const promise = uploadSingleChunk(chunkIndex).then(() => {
+                // 完成后从活动列表移除
+                const idx = activePromises.indexOf(promise)
+                if (idx > -1) activePromises.splice(idx, 1)
+            })
+            activePromises.push(promise)
+        }
+
+        // 等待至少一个完成
+        if (activePromises.length > 0) {
+            await Promise.race(activePromises)
+        }
+    }
+}
+
 // 上传并检查
 const uploadAndCheck = async () => {
     if (!importFile.value) return
 
     importStatus.value = 'uploading'
+    const file = importFile.value
 
     try {
-        // 步骤1: 上传文件
-        const formData = new FormData()
-        formData.append('file', importFile.value)
+        // 初始化上传进度
+        uploadProgress.value = {
+            uploaded: 0,
+            total: file.size,
+            percent: 0,
+            message: t('features.settings.backup.import.uploadInit')
+        }
 
-        const uploadResponse = await axios.post('/api/backup/upload', formData, {
-            headers: { 'Content-Type': 'multipart/form-data' }
+        // 步骤1: 初始化分片上传（后端计算并返回 chunk_size 和 total_chunks）
+        const initResponse = await axios.post('/api/backup/upload/init', {
+            filename: file.name,
+            total_size: file.size
+        })
+
+        if (initResponse.data.status !== 'ok') {
+            throw new Error(initResponse.data.message)
+        }
+
+        uploadId.value = initResponse.data.data.upload_id
+        chunkSize.value = initResponse.data.data.chunk_size
+        const totalChunks = initResponse.data.data.total_chunks
+
+        // 步骤2: 并行分片上传（5个并发连接）
+        uploadProgress.value.message = t('features.settings.backup.import.uploadingChunks')
+        
+        await uploadChunksInParallel(file, totalChunks, uploadId.value, chunkSize.value)
+
+        // 步骤3: 完成上传
+        uploadProgress.value.message = t('features.settings.backup.import.uploadComplete')
+
+        const completeResponse = await axios.post('/api/backup/upload/complete', {
+            upload_id: uploadId.value
         })
 
-        if (uploadResponse.data.status !== 'ok') {
-            throw new Error(uploadResponse.data.message)
+        if (completeResponse.data.status !== 'ok') {
+            throw new Error(completeResponse.data.message)
         }
 
-        uploadedFilename.value = uploadResponse.data.data.filename
+        uploadedFilename.value = completeResponse.data.data.filename
+
+        // 步骤4: 预检查
+        uploadProgress.value.message = t('features.settings.backup.import.checking')
 
-        // 步骤2: 预检查
         const checkResponse = await axios.post('/api/backup/check', {
             filename: uploadedFilename.value
         })
@@ -483,6 +689,17 @@ const uploadAndCheck = async () => {
         importStatus.value = 'confirm'
 
     } catch (error) {
+        // 上传失败时尝试清理已上传的分片
+        if (uploadId.value) {
+            try {
+                await axios.post('/api/backup/upload/abort', {
+                    upload_id: uploadId.value
+                })
+            } catch (abortError) {
+                console.error('Failed to abort upload:', abortError)
+            }
+        }
+        
         importStatus.value = 'failed'
         importError.value = error.response?.data?.message || error.message || 'Upload failed'
     }
@@ -548,7 +765,18 @@ const pollImportProgress = async () => {
 }
 
 // 重置导入状态
-const resetImport = () => {
+const resetImport = async () => {
+    // 如果有进行中的上传，先取消
+    if (uploadId.value && importStatus.value === 'uploading') {
+        try {
+            await axios.post('/api/backup/upload/abort', {
+                upload_id: uploadId.value
+            })
+        } catch (error) {
+            console.error('Failed to abort upload:', error)
+        }
+    }
+    
     importStatus.value = 'idle'
     importFile.value = null
     importTaskId.value = null
@@ -556,29 +784,61 @@ const resetImport = () => {
     importError.value = ''
     uploadedFilename.value = ''
     checkResult.value = null
+    uploadId.value = ''
+    chunkSize.value = 0
+    uploadProgress.value = { uploaded: 0, total: 0, percent: 0, message: '' }
+}
+
+// 下载备份（使用浏览器原生下载，可显示下载进度）
+const downloadBackup = (filename) => {
+    // 获取 token 用于鉴权（因为浏览器原生下载无法携带 Authorization header）
+    const token = localStorage.getItem('token')
+    if (!token) {
+        alert(t('core.common.unauthorized'))
+        return
+    }
+    
+    // 直接使用浏览器下载，这样可以看到原生下载进度条
+    const downloadUrl = `/api/backup/download?filename=${encodeURIComponent(filename)}&token=${encodeURIComponent(token)}`
+    
+    // 创建隐藏的 a 标签触发下载
+    const link = document.createElement('a')
+    link.href = downloadUrl
+    link.download = filename
+    link.style.display = 'none'
+    document.body.appendChild(link)
+    link.click()
+    document.body.removeChild(link)
 }
 
-// 下载备份
-const downloadBackup = async (filename) => {
+// 从列表中恢复备份
+const restoreFromList = async (filename) => {
+    // 切换到导入标签页并设置文件名
+    uploadedFilename.value = filename
+    
+    // 预检查
     try {
-        const response = await axios.get('/api/backup/download', {
-            params: { filename },
-            responseType: 'blob'
+        const checkResponse = await axios.post('/api/backup/check', {
+            filename: filename
         })
+
+        if (checkResponse.data.status !== 'ok') {
+            throw new Error(checkResponse.data.message)
+        }
+
+        checkResult.value = checkResponse.data.data
         
-        // 创建 Blob URL 并触发下载
-        const blob = new Blob([response.data], { type: 'application/zip' })
-        const url = window.URL.createObjectURL(blob)
-        const link = document.createElement('a')
-        link.href = url
-        link.download = filename
-        document.body.appendChild(link)
-        link.click()
-        document.body.removeChild(link)
-        window.URL.revokeObjectURL(url)
+        if (!checkResult.value.valid) {
+            alert(checkResult.value.error || t('features.settings.backup.import.invalidBackup'))
+            return
+        }
+
+        // 切换到导入标签页并显示确认
+        activeTab.value = 'import'
+        importStatus.value = 'confirm'
+
     } catch (error) {
-        console.error('Download failed:', error)
-        alert(t('features.settings.backup.export.failed') + ': ' + (error.message || 'Unknown error'))
+        alert(error.response?.data?.message || error.message || 'Check failed')
     }
 }
 
@@ -598,6 +858,68 @@ const deleteBackup = async (filename) => {
     }
 }
 
+// 重命名相关函数
+const openRenameDialog = (filename) => {
+    renameOldFilename.value = filename
+    // 移除 .zip 后缀，只显示文件名部分
+    renameNewName.value = filename.replace(/\.zip$/i, '')
+    renameError.value = ''
+    renameDialogOpen.value = true
+}
+
+const closeRenameDialog = () => {
+    renameDialogOpen.value = false
+    renameOldFilename.value = ''
+    renameNewName.value = ''
+    renameError.value = ''
+}
+
+// 文件名验证规则
+const renameValidationRule = (value) => {
+    if (!value) return t('features.settings.backup.list.renameRequired')
+    // 检查是否包含非法字符
+    if (/[\\/:*?"<>|]/.test(value)) {
+        return t('features.settings.backup.list.renameInvalidChars')
+    }
+    // 检查是否包含路径遍历字符
+    if (value.includes('..')) {
+        return t('features.settings.backup.list.renameInvalidChars')
+    }
+    return true
+}
+
+const confirmRename = async () => {
+    if (!renameNewName.value || renameError.value) return
+    
+    // 前端验证
+    const validationResult = renameValidationRule(renameNewName.value)
+    if (validationResult !== true) {
+        renameError.value = validationResult
+        return
+    }
+
+    renameLoading.value = true
+    renameError.value = ''
+
+    try {
+        const response = await axios.post('/api/backup/rename', {
+            filename: renameOldFilename.value,
+            new_name: renameNewName.value
+        })
+
+        if (response.data.status === 'ok') {
+            closeRenameDialog()
+            loadBackupList()
+        } else {
+            renameError.value = response.data.message || t('features.settings.backup.list.renameFailed')
+        }
+    } catch (error) {
+        renameError.value = error.response?.data?.message || error.message || t('features.settings.backup.list.renameFailed')
+    } finally {
+        renameLoading.value = false
+    }
+}
+
 // 格式化文件大小
 const formatFileSize = (bytes) => {
     if (bytes === 0) return '0 B'
@@ -632,9 +954,9 @@ const restartAstrBot = () => {
 }
 
 // 重置所有状态
-const resetAll = () => {
+const resetAll = async () => {
     resetExport()
-    resetImport()
+    await resetImport()
     activeTab.value = 'export'
 }
 
diff --git a/dashboard/src/i18n/locales/en-US/features/settings.json b/dashboard/src/i18n/locales/en-US/features/settings.json
index 3715bb35a..19fdd7c1a 100644
--- a/dashboard/src/i18n/locales/en-US/features/settings.json
+++ b/dashboard/src/i18n/locales/en-US/features/settings.json
@@ -64,6 +64,10 @@
       "uploadAndCheck": "Upload & Check",
       "uploading": "Uploading...",
       "uploadWait": "Please wait, uploading backup file...",
+      "uploadInit": "Initializing upload...",
+      "uploadingChunks": "Uploading chunks...",
+      "uploadComplete": "Upload complete, merging file...",
+      "checking": "Checking backup file...",
       "invalidBackup": "Invalid backup file",
       "backupContents": "Backup Contents",
       "tables": "tables",
@@ -93,7 +97,17 @@
     "list": {
       "empty": "No backup files",
       "refresh": "Refresh List",
-      "confirmDelete": "Are you sure you want to delete this backup file? This action cannot be undone."
+      "confirmDelete": "Are you sure you want to delete this backup file? This action cannot be undone.",
+      "uploaded": "Uploaded",
+      "restore": "Restore this backup",
+      "rename": "Rename",
+      "renameTitle": "Rename Backup File",
+      "newName": "New Filename",
+      "renameHint": "Filename can only contain letters, numbers, underscores, hyphens and dots",
+      "renameRequired": "Please enter a filename",
+      "renameInvalidChars": "Filename contains invalid characters",
+      "renameFailed": "Rename failed",
+      "ftpHint": "For large backup files, you can also upload directly to the data/backups directory via FTP/SFTP"
     }
   }
 }
\ No newline at end of file
diff --git a/dashboard/src/i18n/locales/zh-CN/features/settings.json b/dashboard/src/i18n/locales/zh-CN/features/settings.json
index 3778125aa..c8515b603 100644
--- a/dashboard/src/i18n/locales/zh-CN/features/settings.json
+++ b/dashboard/src/i18n/locales/zh-CN/features/settings.json
@@ -64,6 +64,10 @@
       "uploadAndCheck": "上传并检查",
       "uploading": "正在上传...",
       "uploadWait": "请稍候，正在上传备份文件...",
+      "uploadInit": "正在初始化上传...",
+      "uploadingChunks": "正在上传分片...",
+      "uploadComplete": "上传完成，正在合并文件...",
+      "checking": "正在检查备份文件...",
       "invalidBackup": "无效的备份文件",
       "backupContents": "备份内容",
       "tables": "个数据表",
@@ -93,7 +97,17 @@
     "list": {
       "empty": "暂无备份文件",
       "refresh": "刷新列表",
-      "confirmDelete": "确定要删除这个备份文件吗？此操作不可撤销。"
+      "confirmDelete": "确定要删除这个备份文件吗？此操作不可撤销。",
+      "uploaded": "已上传",
+      "restore": "恢复此备份",
+      "rename": "重命名",
+      "renameTitle": "重命名备份文件",
+      "newName": "新文件名",
+      "renameHint": "文件名只能包含字母、数字、下划线、连字符和点",
+      "renameRequired": "请输入文件名",
+      "renameInvalidChars": "文件名包含非法字符",
+      "renameFailed": "重命名失败",
+      "ftpHint": "对于较大的备份文件，也可以通过 FTP/SFTP 等方式直接上传到 data/backups 目录"
     }
   }
 }
\ No newline at end of file
diff --git a/tests/test_backup.py b/tests/test_backup.py
index f9aa01b75..91db47009 100644
--- a/tests/test_backup.py
+++ b/tests/test_backup.py
@@ -195,6 +195,7 @@ def test_generate_manifest(self, mock_main_db, mock_kb_manager):
 
         assert manifest["version"] == BACKUP_MANIFEST_VERSION
         assert manifest["astrbot_version"] == VERSION
+        assert manifest["origin"] == "exported"  # 验证备份来源标记
         assert "exported_at" in manifest
         assert "tables" in manifest
         assert "statistics" in manifest
@@ -412,11 +413,19 @@ def test_secure_filename_empty(self):
     def test_generate_unique_filename(self):
         """测试生成唯一文件名"""
         result = generate_unique_filename("backup.zip")
-        # 应包含 uploaded_ 前缀和时间戳
-        assert result.startswith("uploaded_")
-        assert result.endswith("_backup.zip")
+        # 应包含原文件名和时间戳后缀
+        assert result.startswith("backup_")
+        assert result.endswith(".zip")
         # 应包含时间戳格式 YYYYMMDD_HHMMSS
-        assert re.search(r"uploaded_\d{8}_\d{6}_backup\.zip", result)
+        assert re.search(r"backup_\d{8}_\d{6}\.zip", result)
+
+    def test_generate_unique_filename_with_complex_name(self):
+        """测试复杂文件名生成唯一文件名"""
+        result = generate_unique_filename("my_backup_file.zip")
+        # 应在原文件名后添加时间戳
+        assert result.startswith("my_backup_file_")
+        assert result.endswith(".zip")
+        assert re.search(r"my_backup_file_\d{8}_\d{6}\.zip", result)
 
 
 class TestVersionComparison:
@@ -750,6 +759,7 @@ async def test_export_import_roundtrip(self, tmp_path):
             # 读取 manifest
             manifest = json.loads(zf.read("manifest.json"))
             assert manifest["astrbot_version"] == VERSION
+            assert manifest["origin"] == "exported"  # 验证备份来源标记
 
             # 读取配置
             config = json.loads(zf.read("config/cmd_config.json"))