diff --git a/Html/apps/__init__.py b/Html/apps/__init__.py
index 00ed968..82edac9 100644
--- a/Html/apps/__init__.py
+++ b/Html/apps/__init__.py
@@ -1,10 +1,38 @@
 import logging
 from flask import Flask
 from .config import Config
-from .extensions import init_extensions, register_namespaces
+from .extensions import init_extensions, register_namespaces, close_extensions
 from .views import register_blueprints
+import atexit
+import logging
+import signal
+import threading
 
+_shutdown_once = threading.Event()
 
+def _graceful_shutdown(app: Flask, signum: str = "atexit"):
+    # 防止重复执行
+    if _shutdown_once.is_set():
+        return
+    _shutdown_once.set()
+
+    app.logger.info("Shutting down gracefully (%s)...", signum)
+    try:
+        close_extensions()
+    finally:
+        app.logger.info("Cleanup finished (%s).", signum)
+
+def _bind_signals(app: Flask):
+    def handler(sig, frame):
+        _graceful_shutdown(app, signum=sig)
+        # 不要在这里强行 os._exit(0)，让外层管理器决定何时真正退出
+    for s in (signal.SIGINT, signal.SIGTERM, getattr(signal, "SIGQUIT", None)):
+        if s is not None:
+            try:
+                signal.signal(s, handler)
+            except Exception:
+                # 某些环境不能重绑定（如部分 WSGI 容器内），忽略
+                pass
 
 def create_app(config_object: type = Config) -> Flask:
     app = Flask(__name__, template_folder="templates", static_folder="static")
@@ -31,4 +59,9 @@ def create_app(config_object: type = Config) -> Flask:
     def healthz():
         return {"status": "ok"}
 
+        
+    # 绑定退出钩子（开发/简单部署环境很有用）
+    atexit.register(_graceful_shutdown, app, "atexit")
+    _bind_signals(app)
+
     return app
diff --git a/Html/apps/extension_ase/ase_client/manager.py b/Html/apps/extension_ase/ase_client/manager.py
index 0841273..466bfd6 100644
--- a/Html/apps/extension_ase/ase_client/manager.py
+++ b/Html/apps/extension_ase/ase_client/manager.py
@@ -247,4 +247,6 @@ class ChatManager:
         with self._lock:
             keys = list(self._procs.keys())
         for k in keys:
-            self.stop(k)
\ No newline at end of file
+            self.stop(k)
+
+    
\ No newline at end of file
diff --git a/Html/apps/extensions.py b/Html/apps/extensions.py
index 2c6aaba..d55cc80 100644
--- a/Html/apps/extensions.py
+++ b/Html/apps/extensions.py
@@ -9,6 +9,7 @@ from flask_pymongo import PyMongo
 from qcloud_cos import CosConfig
 from qcloud_cos import CosS3Client
 
+from typing import Optional
 
 mongo = PyMongo()
 
@@ -76,4 +77,15 @@ def register_namespaces(app):
     # 延迟导入以避免循环
     from .sockets.namespaces import VSCodeNamespace, AgentNamespace
     socketio.on_namespace(VSCodeNamespace("/vscode"))
-    socketio.on_namespace(AgentNamespace("/agent"))
\ No newline at end of file
+    socketio.on_namespace(AgentNamespace("/agent"))
+
+
+def close_extensions():
+    # 按“最可能阻塞”的优先级依次停止
+    try:
+        if user_uuid2chatmanager:
+            for uuid in user_uuid2chatmanager:
+                user_uuid2chatmanager[uuid].disconnect(uuid)
+    except Exception as e:
+        print("Failed to shutdown scheduler: %s", e)
+        
\ No newline at end of file