diff --git a/src/memos/api/config.py b/src/memos/api/config.py
index d2dd19266..65049b0c2 100644
--- a/src/memos/api/config.py
+++ b/src/memos/api/config.py
@@ -1014,6 +1014,7 @@ def create_user_config(user_name: str, user_id: str) -> tuple["MOSConfig", "Gene
                                 "fast_graph": bool(os.getenv("FAST_GRAPH", "false") == "true"),
                                 "bm25": bool(os.getenv("BM25_CALL", "false") == "true"),
                                 "cot": bool(os.getenv("VEC_COT_CALL", "false") == "true"),
+                                "fulltext": bool(os.getenv("FULLTEXT_CALL", "false") == "true"),
                             },
                             "include_embedding": bool(
                                 os.getenv("INCLUDE_EMBEDDING", "false") == "true"
@@ -1096,6 +1097,7 @@ def get_default_cube_config() -> "GeneralMemCubeConfig | None":
                                 "fast_graph": bool(os.getenv("FAST_GRAPH", "false") == "true"),
                                 "bm25": bool(os.getenv("BM25_CALL", "false") == "true"),
                                 "cot": bool(os.getenv("VEC_COT_CALL", "false") == "true"),
+                                "fulltext": bool(os.getenv("FULLTEXT_CALL", "false") == "true"),
                             },
                             "mode": os.getenv("ASYNC_MODE", "sync"),
                             "include_embedding": bool(
diff --git a/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py b/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py
index f00efccb6..da6b1e32a 100644
--- a/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py
+++ b/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py
@@ -67,6 +67,7 @@ def __init__(
         self.internet_retriever = internet_retriever
         self.vec_cot = search_strategy.get("cot", False) if search_strategy else False
         self.use_fast_graph = search_strategy.get("fast_graph", False) if search_strategy else False
+        self.use_fulltext = search_strategy.get("fulltext", False) if search_strategy else False
         self.manual_close_internet = manual_close_internet
         self.tokenizer = tokenizer
         self._usage_executor = ContextThreadPoolExecutor(max_workers=4, thread_name_prefix="usage")
@@ -380,20 +381,21 @@ def _retrieve_paths(
                     user_name,
                 )
             )
-            tasks.append(
-                executor.submit(
-                    self._retrieve_from_keyword,
-                    query,
-                    parsed_goal,
-                    query_embedding,
-                    top_k,
-                    memory_type,
-                    search_filter,
-                    search_priority,
-                    user_name,
-                    id_filter,
+            if self.use_fulltext:
+                tasks.append(
+                    executor.submit(
+                        self._retrieve_from_keyword,
+                        query,
+                        parsed_goal,
+                        query_embedding,
+                        top_k,
+                        memory_type,
+                        search_filter,
+                        search_priority,
+                        user_name,
+                        id_filter,
+                    )
                 )
-            )
             if search_tool_memory:
                 tasks.append(
                     executor.submit(