diff --git a/LittlePaimon/config/plugin/manage.py b/LittlePaimon/config/plugin/manage.py
index 50f5b32..cf49f67 100644
--- a/LittlePaimon/config/plugin/manage.py
+++ b/LittlePaimon/config/plugin/manage.py
@@ -49,13 +49,37 @@ class PluginManager:
             if plugin.name not in HIDDEN_PLUGINS:
                 # 将所有PluginPermission相同的，只保留一个
                 if group_list:
-                    await asyncio.gather(
-                        *[PluginPermission.update_or_create(name=plugin.name, session_id=group['group_id'],
-                                                            session_type='group') for group in group_list])
+                    for group in group_list:
+                        count = await PluginPermission.filter(
+                            name=plugin.name, session_id=group['group_id'], session_type='group'
+                        ).count()
+                        if count > 1:
+                            first = await PluginPermission.filter(
+                                name=plugin.name, session_id=group['group_id'], session_type='group'
+                            ).order_by('id').first()
+                            await PluginPermission.filter(
+                                name=plugin.name, session_id=group['group_id'], session_type='group'
+                            ).delete()
+                            await first.delete()
+                        await asyncio.gather(
+                            *[PluginPermission.update_or_create(name=plugin.name, session_id=group['group_id'],
+                                                                session_type='group') for group in group_list])
                 if user_list:
-                    await asyncio.gather(
-                        *[PluginPermission.update_or_create(name=plugin.name, session_id=user['user_id'],
-                                                            session_type='user') for user in user_list])
+                    for user in user_list:
+                        count = await PluginPermission.filter(
+                            name=plugin.name, session_id=user['user_id'], session_type='user'
+                        ).count()
+                        if count > 1:
+                            first = await PluginPermission.filter(
+                                name=plugin.name, session_id=user['user_id'], session_type='user'
+                            ).order_by('id').first()
+                            await PluginPermission.filter(
+                                name=plugin.name, session_id=user['user_id'], session_type='user'
+                            ).delete()
+                            await first.delete()
+                        await asyncio.gather(
+                            *[PluginPermission.update_or_create(name=plugin.name, session_id=user['user_id'],
+                                                                session_type='user') for user in user_list])
             if plugin.name not in HIDDEN_PLUGINS:
                 if plugin.name not in cls.plugins:
                     if metadata := plugin.metadata:
@@ -143,8 +167,8 @@ async def _(event: MessageEvent, matcher: Matcher):
         return
 
     # 权限检查
-    perm = await PluginPermission.filter(name=matcher.plugin_name, session_id=session_id,
-                                         session_type=session_type).first()
+    perm = await PluginPermission.get_or_none(name=matcher.plugin_name, session_id=session_id,
+                                         session_type=session_type)
     if not perm:
         await PluginPermission.create(name=matcher.plugin_name, session_id=session_id, session_type=session_type)
         return