diff --git a/shared/index.tsx b/shared/index.tsx
index fd81542e..4c9b7d59 100644
--- a/shared/index.tsx
+++ b/shared/index.tsx
@@ -110,6 +110,7 @@ export {
   loginWithToken,
   registerWithEmail,
   createTemporaryUser,
+  claimTemporaryUser,
   searchUserWithUniqueName,
   checkTokenValid,
   modifyUserField,
@@ -136,7 +137,7 @@ export type { AppStore, AppState, AppDispatch } from './redux/store';
 
 // utils
 export { joinArray } from './utils/array-helper';
-export { SYSTEM_USERID } from './utils/consts';
+export { NAME_REGEXP, SYSTEM_USERID } from './utils/consts';
 export {
   shouldShowMessageTime,
   getMessageTimeDiff,
diff --git a/shared/model/user.ts b/shared/model/user.ts
index 6b14f9df..b62341b4 100644
--- a/shared/model/user.ts
+++ b/shared/model/user.ts
@@ -7,6 +7,7 @@ export interface UserBaseInfo {
   nickname: string;
   discriminator: string;
   avatar: string | null;
+  temporary: boolean;
 }
 
 export interface UserLoginInfo extends UserBaseInfo {
@@ -82,6 +83,23 @@ export async function createTemporaryUser(
   return data;
 }
 
+/**
+ * 认领访客账号
+ */
+export async function claimTemporaryUser(
+  userId: string,
+  email: string,
+  password: string
+): Promise<UserLoginInfo> {
+  const { data } = await request.post('/api/user/claimTemporaryUser', {
+    userId,
+    email,
+    password,
+  });
+
+  return data;
+}
+
 /**
  * 使用唯一标识名搜索用户
  * @param uniqueName 唯一标识用户昵称: 用户昵称#0000
diff --git a/shared/utils/consts.ts b/shared/utils/consts.ts
index 9342f0f7..dedfbee6 100644
--- a/shared/utils/consts.ts
+++ b/shared/utils/consts.ts
@@ -1,3 +1,11 @@
+/**
+ * 昵称合法性匹配
+ * 最大八个汉字内容或者16字英文
+ * 且中间不能有空格
+ */
+export const NAME_REGEXP =
+  /^([0-9a-zA-Z]{1,2}|[\u4e00-\u9eff]|[\u3040-\u309Fー]|[\u30A0-\u30FF]){1,8}$/;
+
 /**
  * 系统语言的常量
  */
diff --git a/web/src/components/GlobalTemporaryTip.tsx b/web/src/components/GlobalTemporaryTip.tsx
new file mode 100644
index 00000000..cf2ba85b
--- /dev/null
+++ b/web/src/components/GlobalTemporaryTip.tsx
@@ -0,0 +1,45 @@
+import { openModal } from '@/plugin/common';
+import { Button } from 'antd';
+import React, { useCallback } from 'react';
+import { t, Trans, useUserInfo } from 'tailchat-shared';
+import { closeModal } from './Modal';
+import { ClaimTemporaryUser } from './modals/ClaimTemporaryUser';
+
+/**
+ * 访客账号提示
+ */
+export const GlobalTemporaryTip: React.FC = React.memo(() => {
+  const userInfo = useUserInfo();
+  const show = userInfo?.temporary === true;
+
+  const handleClaim = useCallback(() => {
+    if (!userInfo?._id) {
+      return;
+    }
+
+    const key = openModal(
+      <ClaimTemporaryUser
+        userId={userInfo._id}
+        onSuccess={() => closeModal(key)}
+      />
+    );
+  }, [userInfo?._id]);
+
+  return show ? (
+    <div className="text-center bg-indigo-400 text-white">
+      <Trans>
+        当前使用的是一个临时账号,{' '}
+        <Button
+          type="link"
+          className="text-indigo-700 font-bold"
+          size="small"
+          onClick={handleClaim}
+        >
+          立即认领
+        </Button>
+      </Trans>
+      {t('')}
+    </div>
+  ) : null;
+});
+GlobalTemporaryTip.displayName = 'GlobalTemporaryTip';
diff --git a/web/src/components/modals/ClaimTemporaryUser.tsx b/web/src/components/modals/ClaimTemporaryUser.tsx
new file mode 100644
index 00000000..e7435f38
--- /dev/null
+++ b/web/src/components/modals/ClaimTemporaryUser.tsx
@@ -0,0 +1,76 @@
+import { setUserJWT } from '@/utils/jwt-helper';
+import { setGlobalUserLoginInfo } from '@/utils/user-helper';
+import React from 'react';
+import { useDispatch } from 'react-redux';
+import {
+  claimTemporaryUser,
+  createFastFormSchema,
+  FastFormFieldMeta,
+  fieldSchema,
+  t,
+  useAsyncRequest,
+  userActions,
+} from 'tailchat-shared';
+import { ModalWrapper } from '../Modal';
+import { WebFastForm } from '../WebFastForm';
+
+interface Values {
+  email: string;
+  password: string;
+  [key: string]: unknown;
+}
+
+const fields: FastFormFieldMeta[] = [
+  { type: 'text', name: 'email', label: t('邮箱') },
+  {
+    type: 'password',
+    name: 'password',
+    label: t('密码'),
+  },
+];
+
+const schema = createFastFormSchema({
+  email: fieldSchema
+    .string()
+    .required(t('邮箱不能为空'))
+    .email(t('邮箱格式不正确')),
+  password: fieldSchema
+    .string()
+    .min(6, t('密码不能低于6位'))
+    .required(t('密码不能为空')),
+});
+
+interface ClaimTemporaryUserProps {
+  userId: string;
+  onSuccess: () => void;
+}
+export const ClaimTemporaryUser: React.FC<ClaimTemporaryUserProps> = React.memo(
+  (props) => {
+    const userId = props.userId;
+    const dispatch = useDispatch();
+
+    const [{}, handleClaim] = useAsyncRequest(
+      async (values: Values) => {
+        const data = await claimTemporaryUser(
+          userId,
+          values.email,
+          values.password
+        );
+
+        setGlobalUserLoginInfo(data);
+        await setUserJWT(data.token);
+        dispatch(userActions.setUserInfo(data));
+
+        typeof props.onSuccess === 'function' && props.onSuccess();
+      },
+      [, userId, props.onSuccess]
+    );
+
+    return (
+      <ModalWrapper title={t('认领账号')}>
+        <WebFastForm schema={schema} fields={fields} onSubmit={handleClaim} />
+      </ModalWrapper>
+    );
+  }
+);
+ClaimTemporaryUser.displayName = 'ClaimTemporaryUser';
diff --git a/web/src/routes/Entry/GuestView.tsx b/web/src/routes/Entry/GuestView.tsx
index 07f14c5c..740d7511 100644
--- a/web/src/routes/Entry/GuestView.tsx
+++ b/web/src/routes/Entry/GuestView.tsx
@@ -21,7 +21,7 @@ export const GuestView: React.FC = React.memo(() => {
   const [nickname, setNickname] = useState('');
 
   const [{ loading }, handleCreateTemporaryUser] = useAsyncRequest(async () => {
-    await string().required(t('昵称不能为空')).validate(nickname);
+    await string().required(t('昵称不能为空')).max(16).validate(nickname);
 
     const data = await createTemporaryUser(nickname);
 
diff --git a/web/src/routes/Main/index.tsx b/web/src/routes/Main/index.tsx
index 38671e0c..4413fdc0 100644
--- a/web/src/routes/Main/index.tsx
+++ b/web/src/routes/Main/index.tsx
@@ -1,3 +1,4 @@
+import { GlobalTemporaryTip } from '@/components/GlobalTemporaryTip';
 import { useRecordMeasure } from '@/utils/measure-helper';
 import React from 'react';
 import { MainContent } from './Content';
@@ -10,13 +11,17 @@ const MainRoute: React.FC = React.memo(() => {
   useShortcuts();
 
   return (
-    <div className="flex h-full">
-      <MainProvider>
-        <Navbar />
+    <MainProvider>
+      <div className="flex flex-col h-full">
+        <GlobalTemporaryTip />
 
-        <MainContent />
-      </MainProvider>
-    </div>
+        <div className="flex flex-1">
+          <Navbar />
+
+          <MainContent />
+        </div>
+      </div>
+    </MainProvider>
   );
 });
 MainRoute.displayName = 'MainRoute';