diff --git a/src/config/config.py b/src/config/config.py
index 833fca481..4d4615114 100644
--- a/src/config/config.py
+++ b/src/config/config.py
@@ -185,6 +185,11 @@ def _update_dict(target: TOMLDocument | dict | Table, source: TOMLDocument | dic
         if key == "version":
             continue
 
+        # 在合并 permission.master_users 时添加特别调试日志
+        if key == "permission" and isinstance(value, (dict, Table)) and "master_users" in value:
+            logger.info(f"【调试日志】在 _update_dict 中检测到 'permission' 表，其 'master_users' 的值为: {value['master_users']}")
+
+
         if key in target:
             # 键已存在，更新值
             target_value = target[key]
@@ -497,6 +502,19 @@ def load_config(config_path: str) -> Config:
         logger.info("正在解析和验证配置文件...")
         config = Config.from_dict(config_data)
         logger.info("配置文件解析和验证完成")
+
+        # 【临时修复】在验证后，手动从原始数据重新加载 master_users
+        try:
+            # 先将 tomlkit 对象转换为纯 Python 字典
+            config_dict = config_data.unwrap()
+            if "permission" in config_dict and "master_users" in config_dict["permission"]:
+                raw_master_users = config_dict["permission"]["master_users"]
+                # 现在 raw_master_users 就是一个标准的 Python 列表了
+                config.permission.master_users = raw_master_users
+                logger.info(f"【临时修复】已手动将 master_users 设置为: {config.permission.master_users}")
+        except Exception as patch_exc:
+            logger.error(f"【临时修复】手动设置 master_users 失败: {patch_exc}")
+
         return config
     except Exception as e:
         logger.critical(f"配置文件解析失败: {e}")
diff --git a/src/plugin_system/core/permission_manager.py b/src/plugin_system/core/permission_manager.py
index 3132c48c8..6ef070237 100644
--- a/src/plugin_system/core/permission_manager.py
+++ b/src/plugin_system/core/permission_manager.py
@@ -34,20 +34,39 @@ class PermissionManager(IPermissionManager):
 
     def _load_master_users(self):
         """从配置文件加载Master用户列表"""
+        logger.info("开始从配置文件加载Master用户...")
         try:
             master_users_config = global_config.permission.master_users
+            if not isinstance(master_users_config, list):
+                logger.warning(f"配置文件中的 permission.master_users 不是一个列表，已跳过加载。")
+                self._master_users = set()
+                return
+
             self._master_users = set()
-            for user_info in master_users_config:
-                if isinstance(user_info, list) and len(user_info) == 2:
-                    platform, user_id = user_info
-                    self._master_users.add((str(platform), str(user_id)))
-            logger.info(f"已加载 {len(self._master_users)} 个Master用户")
+            for i, user_info in enumerate(master_users_config):
+                if not isinstance(user_info, list) or len(user_info) != 2:
+                    logger.warning(f"Master用户配置项格式错误 (索引: {i}): {user_info}，应为 [\"platform\", \"user_id\"]")
+                    continue
+
+                platform, user_id = user_info
+                if not isinstance(platform, str) or not isinstance(user_id, str):
+                    logger.warning(
+                        f"Master用户配置项 platform 或 user_id 类型错误 (索引: {i}): [{type(platform).__name__}, {type(user_id).__name__}]，应为字符串"
+                    )
+                    continue
+
+                self._master_users.add((platform, user_id))
+                logger.debug(f"成功加载Master用户: platform={platform}, user_id={user_id}")
+
+            logger.info(f"成功加载 {len(self._master_users)} 个Master用户")
+
         except Exception as e:
-            logger.warning(f"加载Master用户配置失败: {e}")
+            logger.error(f"加载Master用户配置时发生严重错误: {e}", exc_info=True)
             self._master_users = set()
 
     def reload_master_users(self):
         """重新加载Master用户配置"""
+        logger.info("正在重新加载Master用户配置...")
         self._load_master_users()
         logger.info("Master用户配置已重新加载")
 
@@ -62,10 +81,10 @@ class PermissionManager(IPermissionManager):
             bool: 是否为Master用户
         """
         user_tuple = (user.platform, user.user_id)
-        is_master = user_tuple in self._master_users
-        if is_master:
+        is_master_flag = user_tuple in self._master_users
+        if is_master_flag:
             logger.debug(f"用户 {user.platform}:{user.user_id} 是Master用户")
-        return is_master
+        return is_master_flag
 
     async def check_permission(self, user: UserInfo, permission_node: str) -> bool:
         """