diff --git a/pkg/core/app.py b/pkg/core/app.py
index 4b3e3b82..cd140413 100644
--- a/pkg/core/app.py
+++ b/pkg/core/app.py
@@ -156,6 +156,9 @@ class Application:
             self.logger.error(f'应用运行致命异常: {e}')
             self.logger.debug(f'Traceback: {traceback.format_exc()}')
 
+    def dispose(self):
+        self.plugin_connector.dispose()
+
     async def print_web_access_info(self):
         """打印访问 webui 的提示"""
 
diff --git a/pkg/core/boot.py b/pkg/core/boot.py
index aff117e6..548a203e 100644
--- a/pkg/core/boot.py
+++ b/pkg/core/boot.py
@@ -52,7 +52,7 @@ async def main(loop: asyncio.AbstractEventLoop):
 
         def signal_handler(sig, frame):
             print('[Signal] 程序退出.')
-            # ap.shutdown()
+            app_inst.dispose()
             os._exit(0)
 
         signal.signal(signal.SIGINT, signal_handler)
diff --git a/pkg/plugin/connector.py b/pkg/plugin/connector.py
index 370b7618..c17de9ae 100644
--- a/pkg/plugin/connector.py
+++ b/pkg/plugin/connector.py
@@ -30,6 +30,8 @@ class PluginRuntimeConnector:
 
     stdio_client_controller: stdio_client_controller.StdioClientController
 
+    ctrl: stdio_client_controller.StdioClientController | ws_client_controller.WebSocketClientController
+
     runtime_disconnect_callback: typing.Callable[
         [PluginRuntimeConnector], typing.Coroutine[typing.Any, typing.Any, None]
     ]
@@ -73,22 +75,22 @@ class PluginRuntimeConnector:
                 self.ap.logger.error('Failed to connect to plugin runtime, trying to reconnect...')
                 await self.runtime_disconnect_callback(self)
 
-            ctrl = ws_client_controller.WebSocketClientController(
+            self.ctrl = ws_client_controller.WebSocketClientController(
                 ws_url=ws_url,
                 make_connection_failed_callback=make_connection_failed_callback,
             )
-            task = ctrl.run(new_connection_callback)
+            task = self.ctrl.run(new_connection_callback)
         else:  # stdio
             self.ap.logger.info('use stdio to connect to plugin runtime')
             # cmd: lbp rt -s
             python_path = sys.executable
             env = os.environ.copy()
-            ctrl = stdio_client_controller.StdioClientController(
+            self.ctrl = stdio_client_controller.StdioClientController(
                 command=python_path,
                 args=['-m', 'langbot_plugin.cli.__init__', 'rt', '-s'],
                 env=env,
             )
-            task = ctrl.run(new_connection_callback)
+            task = self.ctrl.run(new_connection_callback)
 
         asyncio.create_task(task)
 
@@ -135,3 +137,7 @@ class PluginRuntimeConnector:
             cmd_ret = command_context.CommandReturn.model_validate(ret)
 
             yield cmd_ret
+
+    def dispose(self):
+        if isinstance(self.ctrl, stdio_client_controller.StdioClientController):
+            self.ctrl.process.terminate()