diff --git a/src/components/DataForm/rules/index.js b/src/components/DataForm/rules/index.js
index 57fc7a3fe..eedbaa340 100644
--- a/src/components/DataForm/rules/index.js
+++ b/src/components/DataForm/rules/index.js
@@ -19,3 +19,16 @@ export default {
   RequiredChange,
   EmailCheck
 }
+
+export const JsonRequired = {
+  required: true,
+  trigger: 'change',
+  validator: (rule, value, callback) => {
+    try {
+      JSON.parse(value)
+      callback()
+    } catch (e) {
+      callback(new Error(i18n.t('common.InvalidJson')))
+    }
+  }
+}
diff --git a/src/i18n/langs/cn.json b/src/i18n/langs/cn.json
index 4f42a6262..15d4327d3 100644
--- a/src/i18n/langs/cn.json
+++ b/src/i18n/langs/cn.json
@@ -385,7 +385,8 @@
       "SPECIAL_CHAR_REQUIRED": "须包含特殊字符",
       "MIN_LENGTH_ERROR": "密码最小长度 {0} 位"
     },
-    "lastCannotBeDeleteMsg": "最后一项，不能被删除"
+    "lastCannotBeDeleteMsg": "最后一项，不能被删除",
+    "InvalidJson": "不是合法 JSON"
   },
   "dashboard": {
     "ActiveAsset": "近期被登录过",
diff --git a/src/i18n/langs/en.json b/src/i18n/langs/en.json
index a29f36cc8..8894ff87d 100644
--- a/src/i18n/langs/en.json
+++ b/src/i18n/langs/en.json
@@ -383,7 +383,8 @@
       "SPECIAL_CHAR_REQUIRED": "Special char required",
       "MIN_LENGTH_ERROR": "Password minimum length {}"
     },
-    "lastCannotBeDeleteMsg": "The last one can't be delete"
+    "lastCannotBeDeleteMsg": "The last one can't be delete",
+    "InvalidJson": "Not a valid json format"
   },
   "dashboard": {
     "ActiveAsset": "Asset active",
diff --git a/src/views/settings/Ldap/index.vue b/src/views/settings/Ldap/index.vue
index 1d4f17a39..f5f571123 100644
--- a/src/views/settings/Ldap/index.vue
+++ b/src/views/settings/Ldap/index.vue
@@ -20,6 +20,7 @@ import { testLdapSetting } from '@/api/settings'
 import ImportDialog from './ImportDialog'
 import TestLoginDialog from './TestLoginDialog'
 import { IBox } from '@/components'
+import { JsonRequired } from '@/components/DataForm/rules'
 
 export default {
   name: 'Ldap',
@@ -61,7 +62,8 @@ export default {
           el: {
             type: 'textarea'
           },
-          label: this.$t('setting.authLdapUserAttrMap')
+          label: this.$t('setting.authLdapUserAttrMap'),
+          rules: [JsonRequired]
         }
       },
       url: '/api/v1/settings/setting/?category=ldap',
@@ -121,7 +123,7 @@ export default {
 
 <style scoped>
 .listTable ::v-deep .table-action-right-side{
-  padding-top: 0px !important;
+  padding-top: 0 !important;
 }
 
 </style>