diff --git a/src/pages/index.tsx b/src/pages/index.tsx
index e7119e384..8e35ee43b 100644
--- a/src/pages/index.tsx
+++ b/src/pages/index.tsx
@@ -1,11 +1,19 @@
-import React from 'react';
+import React, { useEffect } from 'react';
 import { Card } from '@chakra-ui/react';
 import Markdown from '@/components/Markdown';
 import { useMarkdown } from '@/hooks/useMarkdown';
+import { useRouter } from 'next/router';
 
 const Home = () => {
+  const { inviterId } = useRouter().query as { inviterId: string };
   const { data } = useMarkdown({ url: '/intro.md' });
 
+  useEffect(() => {
+    if (inviterId) {
+      localStorage.setItem('inviterId', inviterId);
+    }
+  }, [inviterId]);
+
   return (
     <Card p={5} lineHeight={2}>
       <Markdown source={data} isChatting={false} />
diff --git a/src/pages/login/components/RegisterForm.tsx b/src/pages/login/components/RegisterForm.tsx
index 1d04da2f5..b239058ee 100644
--- a/src/pages/login/components/RegisterForm.tsx
+++ b/src/pages/login/components/RegisterForm.tsx
@@ -57,7 +57,7 @@ const RegisterForm = ({ setPageType, loginSuccess }: Props) => {
             username,
             code,
             password,
-            inviterId
+            inviterId: inviterId || localStorage.getItem('inviterId') || ''
           })
         );
         toast({