diff --git a/admin/dashboard/blueprints/contacts.py b/admin/dashboard/blueprints/contacts.py
index 1f1da7d..5cf05cd 100644
--- a/admin/dashboard/blueprints/contacts.py
+++ b/admin/dashboard/blueprints/contacts.py
@@ -444,6 +444,73 @@ def api_group_profile(roomid):
         return jsonify({"success": False, "error": str(e)}), 500
 
 
+@contacts_bp.route('/api/group_profile/<roomid>/sync_announcement', methods=['POST'])
+@login_required
+def api_sync_group_announcement(roomid):
+    """手动同步指定群公告（调用 /Group/GetChatRoomInfoDetail）。"""
+    try:
+        server = current_app.dashboard_server
+        if not roomid:
+            return jsonify({"success": False, "error": "缺少群ID"}), 400
+        if not getattr(server, "robot", None) or not getattr(server.robot, "ipad_bot", None):
+            return jsonify({"success": False, "error": "机器人实例未初始化"}), 503
+
+        async def fetch_and_merge():
+            # 先拉基础群信息，再拉 Detail 信息，最后合并，避免只用 Detail 导致字段不完整。
+            base_info = await server.robot.ipad_bot.get_chatroom_info(roomid)
+            detail_info = await server.robot.ipad_bot.get_chatroom_announce(roomid)
+
+            merged_info = dict(base_info or {})
+            detail_contact = None
+            if isinstance(detail_info, dict):
+                contact_list = detail_info.get("ContactList")
+                if isinstance(contact_list, list) and contact_list:
+                    first = contact_list[0]
+                    if isinstance(first, dict):
+                        detail_contact = first
+
+            if detail_contact:
+                merged_info.update(detail_contact)
+            if isinstance(detail_info, dict):
+                merged_info.update(detail_info)
+
+            # 统一公告字段命名，供 contacts_db.save_chatroom_info 直接提取入库。
+            announcement = (
+                merged_info.get("ChatRoomAnnouncement")
+                or merged_info.get("Announcement")
+                or merged_info.get("Annoucement")
+                or merged_info.get("AnnouncementContent")
+                or merged_info.get("chatRoomAnnouncement")
+            )
+            if announcement:
+                merged_info["ChatRoomAnnouncement"] = announcement
+
+            # 保底补上群ID，避免少数字段缺失导致无法更新到对应群。
+            if not merged_info.get("UserName"):
+                merged_info["UserName"] = roomid
+            return merged_info
+
+        merged_info = asyncio.run(fetch_and_merge())
+        if not merged_info:
+            return jsonify({"success": False, "error": "获取群详情失败"}), 500
+
+        save_ok = server.contact_db.save_chatroom_info(merged_info)
+        if not save_ok:
+            return jsonify({"success": False, "error": "保存群公告失败"}), 500
+
+        profile = server.contact_db.get_chatroom_profile(roomid)
+        return jsonify({
+            "success": True,
+            "message": "群公告同步成功",
+            "data": {
+                "profile": profile
+            }
+        })
+    except Exception as e:
+        logger.error(f"手动同步群公告失败: {e}")
+        return jsonify({"success": False, "error": str(e)}), 500
+
+
 @contacts_bp.route('/api/group_member_context/<roomid>/<wxid>', methods=['GET'])
 @login_required
 def api_group_member_context(roomid, wxid):
diff --git a/admin/dashboard/templates/contacts_management.html b/admin/dashboard/templates/contacts_management.html
index 7d31469..64058b7 100644
--- a/admin/dashboard/templates/contacts_management.html
+++ b/admin/dashboard/templates/contacts_management.html
@@ -210,7 +210,17 @@
                 </div>
             </el-descriptions-item>
             <el-descriptions-item label="群公告">
-                <span class="group-announcement">{% raw %}{{ currentGroupProfile.announcement || '暂无群公告' }}{% endraw %}</span>
+                <div class="group-announcement-wrap">
+                    <span class="group-announcement">{% raw %}{{ currentGroupProfile.announcement || '暂无群公告' }}{% endraw %}</span>
+                    <el-button
+                        size="mini"
+                        type="primary"
+                        plain
+                        :loading="groupAnnouncementSyncing"
+                        @click="syncCurrentGroupAnnouncement">
+                        同步群公告
+                    </el-button>
+                </div>
             </el-descriptions-item>
             <el-descriptions-item label="机器人状态">
                 <el-tag :type="currentGroup.robot_status === 'enabled' ? 'success' : 'info'">
@@ -778,6 +788,8 @@
                 groupPermissionsLoading: false,
                 // 当前群基础资料：用于展示群主、群公告、管理员、成员数等信息。
                 currentGroupProfile: { owner_wxid: '', owner_name: '', announcement: '', member_count: 0, admin_count: 0, admins: [] },
+                // 群公告手动同步按钮的加载态，避免重复点击触发多次请求。
+                groupAnnouncementSyncing: false,
                 groupInsight: null,
                 groupInsightLoading: false,
                 groupMembersList: [], groupMembersCurrentPage: 1, groupMembersPageSize: 10, groupMemberSearchQuery: '', groupMembersLoading: false,
@@ -960,6 +972,27 @@
                         this.$message.error('加载群资料失败');
                     });
             },
+            syncCurrentGroupAnnouncement() {
+                if (!this.currentGroup || !this.currentGroup.wxid) return;
+                this.groupAnnouncementSyncing = true;
+                // 手动触发群公告同步：调用后端 Detail 接口并落库，再刷新当前群资料展示。
+                axios.post(`/contacts/api/group_profile/${this.currentGroup.wxid}/sync_announcement`)
+                    .then(response => {
+                        if (response.data.success) {
+                            this.$message.success(response.data.message || '群公告同步成功');
+                            this.loadGroupProfile(this.currentGroup.wxid);
+                        } else {
+                            this.$message.error(response.data.error || '群公告同步失败');
+                        }
+                    })
+                    .catch(error => {
+                        console.error('同步群公告失败:', error);
+                        this.$message.error('同步群公告失败');
+                    })
+                    .finally(() => {
+                        this.groupAnnouncementSyncing = false;
+                    });
+            },
             toggleGroupPermission(permission) {
                 const newStatus = permission.statusBool ? 'enabled' : 'disabled';
                 axios.post(`/robot/api/group/${this.currentGroup.wxid}/permissions`, {
@@ -1539,6 +1572,7 @@
     .detail-card-sub { font-size: 12px; color: #94a3b8; font-weight: 500; }
     .feature-chip-list { display: flex; gap: 8px; flex-wrap: wrap; min-height: 60px; align-items: flex-start; }
     .empty-inline, .detail-inline-note { font-size: 12px; color: #64748b; }
+    .group-announcement-wrap { display: flex; gap: 12px; align-items: flex-start; justify-content: space-between; }
     .group-announcement { white-space: pre-wrap; line-height: 1.7; color: #334155; }
     .detail-inline-note { margin-top: 12px; line-height: 1.6; }
     .suggestion-list { display: flex; flex-direction: column; gap: 12px; }