diff --git a/astrbot/core/platform/sources/telegram/tg_event.py b/astrbot/core/platform/sources/telegram/tg_event.py
index 62e1998f7..6784cfa3c 100644
--- a/astrbot/core/platform/sources/telegram/tg_event.py
+++ b/astrbot/core/platform/sources/telegram/tg_event.py
@@ -218,7 +218,6 @@ async def send_streaming(self, generator, use_fallback: bool = False):
                     try:
                         msg = await self.client.send_message(text=delta, **payload)
                         current_content = delta
-                        delta = ""
                     except Exception as e:
                         logger.warning(f"发送消息失败(streaming): {e!s}")
                     message_id = msg.message_id