diff --git a/group_auto/group_member_change.py b/group_auto/group_member_change.py
index b51e919..2b219da 100644
--- a/group_auto/group_member_change.py
+++ b/group_auto/group_member_change.py
@@ -8,8 +8,8 @@ class GroupMemberChange:
     def __init__(self, wcf: Wcf):
         self.wcf = wcf  # 假设 wcf 对象在此类中初始化
         self.r = redis.Redis(host='192.168.2.32', port=6379, db=0, decode_responses=True)
-        # 初始化本地缓存
-        self.local_membercount = None
+        # 初始化本地缓存字典，使用 group_id 作为键
+        self.local_membercounts = {}
         self.local_members = {}
 
     def get_current_members(self, group_id):
@@ -33,15 +33,13 @@ class GroupMemberChange:
 
     def process_message(self, group_id, xml_data_current):
         """ 处理消息并更新 Redis """
-        # print(f"Processing message for group_id: {group_id}")
         root_current = ET.fromstring(xml_data_current)
         membercount_current = root_current.find('membercount').text
-        # print(f"Current membercount: {membercount_current}")
 
         result = []  # 初始化文案列表
 
         # 如果本地没有缓存数据，则从 Redis 获取
-        if self.local_membercount is None or not self.local_members:
+        if group_id not in self.local_membercounts or group_id not in self.local_members:
             print("No local data, fetching from Redis")
             membercount_previous, members_previous = self.get_previous_data_from_redis(group_id)
 
@@ -53,22 +51,20 @@ class GroupMemberChange:
                 self.r.hmset(f"group:group_members:{group_id}", members_current)  # 存储当前成员信息
 
                 # 更新本地缓存
-                self.local_membercount = membercount_current
-                self.local_members = members_current
+                self.local_membercounts[group_id] = membercount_current
+                self.local_members[group_id] = members_current
 
                 result.append("$NO_CHANGE$")
                 return "\n".join(result)
 
         else:
             # 使用本地缓存的数据进行比较
-            # print("Using local data for comparison")
-            membercount_previous = self.local_membercount
-            members_previous = self.local_members
+            membercount_previous = self.local_membercounts[group_id]
+            members_previous = self.local_members[group_id]
 
         # 比较 membercount 是否发生变化
         if membercount_current != membercount_previous:
             print(f"Membercount changed: {membercount_previous} -> {membercount_current}")
-            # result.append(f"membercount has changed: {membercount_previous} -> {membercount_current}")
             members_current = self.get_current_members(group_id)
 
             # 比较成员，仅使用 wxid 进行比较
@@ -81,17 +77,15 @@ class GroupMemberChange:
             # 添加变化成员的文案
             for wxid in added_members:
                 nickname = members_current[wxid]
-                # print(f"Detected member added: {nickname} ({wxid})")
                 result.append(f"检测到 {nickname}（{wxid}）加入群聊")
             for wxid in removed_members:
                 nickname = members_previous[wxid]
-                # print(f"Detected member removed: {nickname} ({wxid})")
                 result.append(f"检测到 {nickname}（{wxid}）退出群聊")
 
             # 更新本地缓存
             print(f"Updating local cache with current membercount and members")
-            self.local_membercount = membercount_current
-            self.local_members = members_current
+            self.local_membercounts[group_id] = membercount_current
+            self.local_members[group_id] = members_current
 
             # 更新 Redis 数据
             print(f"Updating Redis with current membercount and members")
@@ -99,7 +93,6 @@ class GroupMemberChange:
             self.r.hmset(f"group:group_members:{group_id}", members_current)
 
         else:
-            # print("No change detected in membercount")
             result.append("$NO_CHANGE$")
 
         # 返回拼接后的结果