diff --git a/app/Http/Controllers/Api/SystemController.php b/app/Http/Controllers/Api/SystemController.php
index 9ed0449c7..5be00603c 100755
--- a/app/Http/Controllers/Api/SystemController.php
+++ b/app/Http/Controllers/Api/SystemController.php
@@ -550,13 +550,40 @@ class SystemController extends AbstractController
             Doo::licenseSave($license);
         }
         //
-        return Base::retSuccess('success', [
+        $data = [
             'license' => Doo::licenseContent(),
             'info' => Doo::license(),
             'macs' => Doo::macs(),
             'doo_sn' => Doo::dooSN(),
             'user_count' => User::whereBot(0)->whereNull('disable_at')->count(),
-        ]);
+            'error' => []
+        ];
+        if ($data['info']['people'] > 3) {
+            // 小于3人的License不检查
+            if ($data['info']['sn'] != $data['doo_sn']) {
+                $data['error'][] = '终端SN与License不匹配';
+            }
+            if ($data['info']['mac']) {
+                $approved = false;
+                foreach ($data['info']['mac'] as $mac) {
+                    if (in_array($mac, $data['macs'])) {
+                        $approved = true;
+                        break;
+                    }
+                }
+                if (!$approved) {
+                    $data['error'][] = '终端MAC与License不匹配';
+                }
+            }
+            if ($data['user_count'] > $data['info']['people']) {
+                $data['error'][] = '终端用户数超过License限制';
+            }
+            if ($data['info']['expired_at'] && strtotime($data['info']['expired_at']) <= Base::time()) {
+                $data['error'][] = '终端License已过期';
+            }
+        }
+        //
+        return Base::retSuccess('success', $data);
     }
 
     /**
diff --git a/resources/assets/js/pages/manage/dashboard.vue b/resources/assets/js/pages/manage/dashboard.vue
index 55750c881..71f676768 100644
--- a/resources/assets/js/pages/manage/dashboard.vue
+++ b/resources/assets/js/pages/manage/dashboard.vue
@@ -2,6 +2,7 @@
     <div class="page-dashboard">
         <PageTitle :title="$L('仪表盘')"/>
         <div class="dashboard-wrapper">
+            <Alert v-if="warningMsg" class="dashboard-warning" type="warning" show-icon>{{warningMsg}}</Alert>
             <div class="dashboard-hello">{{$L('欢迎您，' + userInfo.nickname)}}</div>
             <div class="dashboard-desc">
                 {{$L('以下是你当前的任务统计数据')}}
@@ -92,33 +93,31 @@ export default {
     data() {
         return {
             nowTime: $A.Time(),
-            nowInterval: null,
+            nowInter: null,
+
+            licenseTimer: null,
 
             loadIng: 0,
             dashboard: 'today',
+
+            warningMsg: '',
         }
     },
 
-    mounted() {
-        this.nowInterval = setInterval(() => {
-            this.nowTime = $A.Time();
-        }, 1000)
-    },
-
-    destroyed() {
-        clearInterval(this.nowInterval)
-    },
-
     activated() {
         this.$store.dispatch("getTaskForDashboard", 600);
+        this.loadInterval(true);
+        this.loadLicense(true);
     },
 
     deactivated() {
         this.$store.dispatch("forgetTaskCompleteTemp", true);
+        this.loadInterval(false);
+        this.loadLicense(false);
     },
 
     computed: {
-        ...mapState(['userInfo', 'cacheTasks', 'taskCompleteTemps', 'loadDashboardTasks']),
+        ...mapState(['userInfo', 'userIsAdmin', 'cacheTasks', 'taskCompleteTemps', 'loadDashboardTasks']),
 
         ...mapGetters(['dashboardTask', 'assistTask', 'transforTasks']),
 
@@ -150,6 +149,13 @@ export default {
         },
     },
 
+    watch: {
+        windowActive(active) {
+            this.loadInterval(active)
+            this.loadLicense(active);
+        }
+    },
+
     methods: {
         getTitle(type) {
             switch (type) {
@@ -184,6 +190,41 @@ export default {
         expiresFormat(date) {
             return $A.countDownFormat(date, this.nowTime)
         },
+
+        loadInterval(load) {
+            if (this.nowInter) {
+                clearInterval(this.nowInter)
+                this.nowInter = null;
+            }
+            if (load === false) {
+                return
+            }
+            this.nowInter = setInterval(_ => {
+                this.nowTime = $A.Time()
+            }, 1000)
+        },
+
+        loadLicense(load) {
+            if (this.licenseTimer) {
+                clearTimeout(this.licenseTimer)
+                this.licenseTimer = null;
+            }
+            if (load === false || !this.userIsAdmin) {
+                return
+            }
+            this.licenseTimer = setTimeout(_ => {
+                this.$store.dispatch("call", {
+                    url: 'system/license',
+                    data: {
+                        type: 'get'
+                    }
+                }).then(({data}) => {
+                    this.warningMsg = data.error.length > 0 ? data.error[0] : '';
+                }).catch(_ => {
+                    this.warningMsg = '';
+                })
+            }, 1500)
+        }
     }
 }
 </script>
diff --git a/resources/assets/js/pages/manage/setting/license.vue b/resources/assets/js/pages/manage/setting/license.vue
index 0a764a351..54ee6177d 100644
--- a/resources/assets/js/pages/manage/setting/license.vue
+++ b/resources/assets/js/pages/manage/setting/license.vue
@@ -6,7 +6,7 @@
             </FormItem>
             <FormItem :label="$L('详细信息')">
                 <div class="license-box">
-                    <ul>
+                    <ul v-if="formData.info.sn">
                         <li>
                             <em>SN:</em>
                             <span>{{formData.info.sn}}</span>
@@ -51,6 +51,12 @@
                                 <Icon class="information" type="ios-information-circle-outline" />
                             </ETooltip>
                         </li>
+                        <li v-for="tip in formData.error" class="warning">{{tip}}</li>
+                    </ul>
+                    <ul v-else>
+                        <li>
+                            {{$L('加载中...')}}
+                        </li>
                     </ul>
                 </div>
             </FormItem>
@@ -72,6 +78,10 @@
             line-height: 22px;
             padding-bottom: 6px;
             display: flex;
+            &.warning {
+                font-weight: 500;
+                color: #ed4014;
+            }
             > em {
                 flex-shrink: 0;
                 font-style: normal;
@@ -103,7 +113,8 @@ export default {
                 info: {},
                 macs: [],
                 doo_sn: '',
-                user_count: 0
+                user_count: 0,
+                error: []
             },
         }
     },
@@ -129,9 +140,11 @@ export default {
         systemSetting(save) {
             this.loadIng++;
             this.$store.dispatch("call", {
-                url: 'system/license?type=' + (save ? 'save' : 'get'),
+                url: 'system/license',
+                data: Object.assign(this.formData, {
+                    type: save ? 'save' : 'get'
+                }),
                 method: 'post',
-                data: this.formData,
             }).then(({data}) => {
                 if (save) {
                     $A.messageSuccess('修改成功');
diff --git a/resources/assets/js/store/actions.js b/resources/assets/js/store/actions.js
index 152724d7c..9a3be1d60 100644
--- a/resources/assets/js/store/actions.js
+++ b/resources/assets/js/store/actions.js
@@ -131,6 +131,7 @@ export default {
             'users/editpass',
             'users/operation',
             'users/delete/account',
+            'system/license',
             'users/bot/*',
             'dialog/msg/*',
         ], true)) {
diff --git a/resources/assets/sass/pages/page-dashboard.scss b/resources/assets/sass/pages/page-dashboard.scss
index b9c5d7d78..2d5c72ce5 100644
--- a/resources/assets/sass/pages/page-dashboard.scss
+++ b/resources/assets/sass/pages/page-dashboard.scss
@@ -13,6 +13,13 @@
         display: flex;
         flex-direction: column;
         align-items: center;
+
+        .dashboard-warning {
+            border-top: 0;
+            border-top-left-radius: 0;
+            border-top-right-radius: 0;
+        }
+
         .dashboard-hello,
         .dashboard-desc ,
         .dashboard-block ,