diff --git a/plugins/robot_menu/main.py b/plugins/robot_menu/main.py
index d22721b..c35ceff 100644
--- a/plugins/robot_menu/main.py
+++ b/plugins/robot_menu/main.py
@@ -203,7 +203,7 @@ class RobotMenuPlugin(MessagePluginInterface):
             # 格式：菜单 启用 功能名 或 菜单 关闭 功能名
             if len(parts) >= 3 and parts[1] in ["启用", "关闭"]:
                 # 检查管理员权限
-                if not self._is_admin(sender):
+                if not GroupBotManager.is_admin(sender):
                     await bot.send_at_message(target, "❌权限不足，只有管理员可以管理功能", [sender])
                     return True, "权限不足"
 
@@ -252,9 +252,3 @@ class RobotMenuPlugin(MessagePluginInterface):
             import traceback
             self.LOG.error(traceback.format_exc())
             return False, f"处理出错: {e}"
-
-    def _is_admin(self, user_id: str) -> bool:
-        """检查用户是否为管理员"""
-        # admin_list 现在是 GroupBotManager 的类属性，可以直接访问
-        admin_list = GroupBotManager.get_admin_list()
-        return user_id in admin_list
diff --git a/plugins/system_updater/main.py b/plugins/system_updater/main.py
index 78e1a38..bbee246 100644
--- a/plugins/system_updater/main.py
+++ b/plugins/system_updater/main.py
@@ -112,7 +112,7 @@ class SystemUpdaterPlugin(MessagePluginInterface):
 
         self.bot: WechatAPIClient = message.get("bot")
         # 检查权限
-        if not self._is_admin(sender):
+        if not GroupBotManager.is_admin(sender):
             await self.bot.send_text_message((roomid if roomid else sender), "⚠️ 您没有执行此操作的权限",
                                              sender)
             return True, "无权限"
@@ -166,12 +166,6 @@ class SystemUpdaterPlugin(MessagePluginInterface):
             # 捕获其他异常
             logger.error(f"系统更新失败: {str(e)}")
 
-    def _is_admin(self, user_id: str) -> bool:
-        """检查用户是否为管理员"""
-        # admin_list 现在是 GroupBotManager 的类属性，可以直接访问
-        admin_list = GroupBotManager.get_admin_list()
-        return user_id in admin_list
-
 
 # 插件入口点
 def get_plugin():
diff --git a/utils/robot_cmd/robot_command.py b/utils/robot_cmd/robot_command.py
index 09194fa..77c6e43 100644
--- a/utils/robot_cmd/robot_command.py
+++ b/utils/robot_cmd/robot_command.py
@@ -347,6 +347,13 @@ class GroupBotManager:
         """
         return GroupBotManager.admin_list
 
+    @staticmethod
+    def is_admin(user_id: str) -> bool:
+        """检查用户是否为管理员"""
+        # admin_list 现在是 GroupBotManager 的类属性，可以直接访问
+        admin_list = GroupBotManager.get_admin_list()
+        return user_id in admin_list
+
 
 # 示例命令
 def simulate_commands():