diff --git a/projects/fastgpt/components/header/LangSwitcher.tsx b/projects/fastgpt/components/header/LangSwitcher.tsx
index 2317b24..b5abbeb 100644
--- a/projects/fastgpt/components/header/LangSwitcher.tsx
+++ b/projects/fastgpt/components/header/LangSwitcher.tsx
@@ -19,6 +19,7 @@ export const LangSwitcher = () => {
   const router = useRouter();
 
   const handleSwitchLanguage = (value: string) => {
+    localStorage.setItem('preferredLang', value);
     if (value === defaultLocale) {
       router.push('/');
       return;
@@ -26,6 +27,13 @@ export const LangSwitcher = () => {
     router.push(value);
   };
 
+  useEffect(() => {
+    const storedLang = localStorage.getItem('preferredLang');
+    if (storedLang && storedLang !== lang) {
+      router.push(storedLang);
+    }
+  }, []);
+
   return (
     <Select value={langName} onValueChange={handleSwitchLanguage}>
       <SelectTrigger className="w-fit">