diff --git a/plugin_common/plugin_manager.py b/plugin_common/plugin_manager.py
index 1875040..a1803f6 100644
--- a/plugin_common/plugin_manager.py
+++ b/plugin_common/plugin_manager.py
@@ -313,3 +313,29 @@ class PluginManager:
 
         # 加载插件
         return self.load_plugin(plugin_name)
+        
+    def shutdown_plugins(self) -> bool:
+        """
+        卸载所有插件
+        
+        Returns:
+            是否全部成功卸载
+        """
+        success = True
+        # 创建插件名称的副本，因为在卸载过程中会修改self.plugins字典
+        plugin_names = list(self.plugins.keys())
+        
+        for plugin_name in plugin_names:
+            if not self.unload_plugin(plugin_name):
+                self.LOG.error(f"卸载插件 {plugin_name} 失败")
+                success = False
+        
+        # 清空插件模块字典
+        self.plugin_modules.clear()
+        
+        # 确保插件字典为空
+        if self.plugins:
+            self.LOG.warning(f"插件卸载后仍有 {len(self.plugins)} 个插件残留")
+            success = False
+            
+        return success