diff --git a/frontend/src/api/dingtalk.ts b/frontend/src/api/dingtalk.ts
index 4bd53a7..7d5ff5c 100644
--- a/frontend/src/api/dingtalk.ts
+++ b/frontend/src/api/dingtalk.ts
@@ -65,6 +65,14 @@ export function getDingTalkDepartments(): Promise<any[]> {
     .then(res => res.data)
 }
 
+/**
+ * 同步钉钉部门
+ */
+export function syncDingTalkDepartments(): Promise<number> {
+  return request.post<Result<number>>('/dingtalk/sync-departments')
+    .then(res => res.data)
+}
+
 /**
  * 同步钉钉用户
  */
diff --git a/frontend/src/views/Settings.vue b/frontend/src/views/Settings.vue
index c170e6f..2f93357 100644
--- a/frontend/src/views/Settings.vue
+++ b/frontend/src/views/Settings.vue
@@ -671,6 +671,21 @@
                     </a-button>
                   </a-space>
                 </a-form-item>
+
+                <a-divider orientation="left">部门同步</a-divider>
+                <a-alert 
+                  message="部门同步说明" 
+                  description="同步钉钉部门到系统：自动获取所有钉钉部门并设置ding_dept_id。如果钉钉部门在系统中不存在，会自动创建。同步后，用户登录时就能自动匹配到部门了。"
+                  type="info" 
+                  show-icon 
+                  style="margin-bottom: 16px;"
+                />
+                <a-form-item>
+                  <a-button type="primary" @click="handleSyncDepartments" :loading="syncingDepartments" :disabled="!dingTalkConfig.appKey || !dingTalkConfig.appSecret">
+                    <template #icon><Icon name="sync" size="sm" /></template>
+                    同步钉钉部门
+                  </a-button>
+                </a-form-item>
               </a-form>
             </div>
           </a-tab-pane>
@@ -2281,7 +2296,7 @@ const goToScorePool = () => {
 }
 
 // =============== 钉钉集成 ===============
-import { getDingTalkConfig, saveDingTalkConfig, testDingTalkConnection, sendTestMessage } from '@/api/dingtalk'
+import { getDingTalkConfig, saveDingTalkConfig, testDingTalkConnection, sendTestMessage, syncDingTalkDepartments } from '@/api/dingtalk'
 
 const dingTalkConfig = reactive({
   id: undefined as number | undefined,
@@ -2403,6 +2418,23 @@ const handleSendTestMessage = async () => {
   }
 }
 
+const handleSyncDepartments = async () => {
+  if (!dingTalkConfig.appKey || !dingTalkConfig.appSecret) {
+    message.warning('请先填写AppKey和AppSecret')
+    return
+  }
+  
+  syncingDepartments.value = true
+  try {
+    const count = await syncDingTalkDepartments()
+    message.success(`同步成功！共处理 ${count} 个部门`)
+  } catch (error: any) {
+    message.error(error.message || '同步失败')
+  } finally {
+    syncingDepartments.value = false
+  }
+}
+
 // ==================== 导航栏配置 ====================
 const navbarConfig = ref<NavbarConfig>({
   menuItems: {