diff --git a/src/lang/index.ts b/src/lang/index.ts
index 66ba390..c1e3f6a 100644
--- a/src/lang/index.ts
+++ b/src/lang/index.ts
@@ -44,7 +44,7 @@ const localeLanMap = {
 const i18n = createI18n({
   allowComposition: true,
   legacy: false,
-  locale: defLanguage,  // 设置默认语言
+  locale: localeLanMap[defLanguage],  // 设置默认语言
   fallbackLocale: localeLanMap[defLanguage], // 设置备用语言
   messages: messages // 设置资源文件对象
 })