diff --git a/main/xiaozhi-server/core/handle/functionHandler.py b/main/xiaozhi-server/core/handle/functionHandler.py
index 9650a31b..4d7c55e9 100644
--- a/main/xiaozhi-server/core/handle/functionHandler.py
+++ b/main/xiaozhi-server/core/handle/functionHandler.py
@@ -22,6 +22,10 @@ class FunctionHandler:
         self.register_config_functions()
         self.functions_desc = self.function_registry.get_all_function_desc()
         self.finish_init = True
+    
+    def upload_functions_desc(self):
+        self.functions_desc = self.function_registry.get_all_function_desc()
+
 
     def current_support_functions(self):
         func_names = []
diff --git a/main/xiaozhi-server/core/handle/iotHandle.py b/main/xiaozhi-server/core/handle/iotHandle.py
index 27d751a4..6406c659 100644
--- a/main/xiaozhi-server/core/handle/iotHandle.py
+++ b/main/xiaozhi-server/core/handle/iotHandle.py
@@ -338,8 +338,7 @@ async def handleIotDescriptors(conn, descriptors):
 
     # 如果注册了新函数，更新function描述列表
     if functions_changed and hasattr(conn, "func_handler"):
-
-        conn.func_handler.functions_desc = conn.func_handler.function_registry.get_all_function_desc()
+        conn.func_handler.upload_functions_desc()
 
         func_names = conn.func_handler.current_support_functions()
         conn.logger.bind(tag=TAG).info(f"设备类型: {type_id}")
diff --git a/main/xiaozhi-server/core/mcp/manager.py b/main/xiaozhi-server/core/mcp/manager.py
index 9580f862..dc2f9de9 100644
--- a/main/xiaozhi-server/core/mcp/manager.py
+++ b/main/xiaozhi-server/core/mcp/manager.py
@@ -75,6 +75,7 @@ class MCPManager:
                 self.conn.logger.bind(tag=TAG).error(
                     f"Failed to initialize MCP server {name}: {e}"
                 )
+        self.conn.func_handler.upload_functions_desc()
 
     def get_all_tools(self) -> List[Dict[str, Any]]:
         """获取所有服务的工具function定义