diff --git a/src/hooks/useI18n.ts b/src/hooks/useI18n.ts
index e9bed48a..12fdec45 100644
--- a/src/hooks/useI18n.ts
+++ b/src/hooks/useI18n.ts
@@ -31,11 +31,12 @@ export default function useLocale() {
     },
   ];
 
-  // 挂载前根据默认语言在设置一次
+  // 挂载前根据默认语言再设置一次
   onBeforeMount(() => {
     const localI18n = localGet(CACHE_LOCAL_I18N);
     if (localI18n) {
       i18n.locale.value = localI18n;
+      document.documentElement.lang = localI18n.replace('_', '-');
     }
   });
 
diff --git a/src/store/modules/app.ts b/src/store/modules/app.ts
index 2f419814..2eb5b5a8 100644
--- a/src/store/modules/app.ts
+++ b/src/store/modules/app.ts
@@ -15,10 +15,10 @@ type AppStore = {
   appVersion: string;
 
   /**服务版本 */
-  version: string,
-  buildTime: string,
+  version: string;
+  buildTime: string;
   // 序列号
-  serialNum: string,
+  serialNum: string;
   /**应用版权声明 */
   copyright: string;
   /**LOGO显示类型 */