diff --git a/src/components/dialog/content/SignInContent.vue b/src/components/dialog/content/SignInContent.vue
index db701166e..c993670cf 100644
--- a/src/components/dialog/content/SignInContent.vue
+++ b/src/components/dialog/content/SignInContent.vue
@@ -19,7 +19,12 @@
 
     <!-- Form -->
     <SignInForm v-if="isSignIn" @submit="signInWithEmail" />
-    <SignUpForm v-else @submit="signUpWithEmail" />
+    <template v-else>
+      <Message v-if="userIsInChina" severity="warn" class="mb-4">
+        {{ t('auth.signup.regionRestrictionChina') }}
+      </Message>
+      <SignUpForm v-else @submit="signUpWithEmail" />
+    </template>
 
     <!-- Divider -->
     <Divider align="center" layout="horizontal" class="my-8">
@@ -84,11 +89,13 @@
 <script setup lang="ts">
 import Button from 'primevue/button'
 import Divider from 'primevue/divider'
-import { ref } from 'vue'
+import Message from 'primevue/message'
+import { onMounted, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 import { SignInData, SignUpData } from '@/schemas/signInSchema'
 import { useFirebaseAuthService } from '@/services/firebaseAuthService'
+import { isInChina } from '@/utils/networkUtil'
 
 import SignInForm from './signin/SignInForm.vue'
 import SignUpForm from './signin/SignUpForm.vue'
@@ -127,4 +134,9 @@ const signUpWithEmail = async (values: SignUpData) => {
     onSuccess()
   }
 }
+
+const userIsInChina = ref(false)
+onMounted(async () => {
+  userIsInChina.value = await isInChina()
+})
 </script>
diff --git a/src/locales/en/main.json b/src/locales/en/main.json
index 653c801e4..ce38a0c48 100644
--- a/src/locales/en/main.json
+++ b/src/locales/en/main.json
@@ -1125,7 +1125,8 @@
       "signUpButton": "Sign up",
       "signIn": "Sign in",
       "signUpWithGoogle": "Sign up with Google",
-      "signUpWithGithub": "Sign up with Github"
+      "signUpWithGithub": "Sign up with Github",
+      "regionRestrictionChina": "In accordance with local regulatory requirements, our services are currently unavailable to users located in mainland China."
     },
     "signOut": {
       "signOut": "Log Out",
diff --git a/src/locales/es/main.json b/src/locales/es/main.json
index ea85f4224..da75108c3 100644
--- a/src/locales/es/main.json
+++ b/src/locales/es/main.json
@@ -46,6 +46,7 @@
       "emailPlaceholder": "Ingresa tu correo electrónico",
       "passwordLabel": "Contraseña",
       "passwordPlaceholder": "Ingresa una nueva contraseña",
+      "regionRestrictionChina": "De acuerdo con los requisitos regulatorios locales, nuestros servicios no están disponibles actualmente para usuarios ubicados en China continental.",
       "signIn": "Iniciar sesión",
       "signUpButton": "Registrarse",
       "signUpWithGithub": "Registrarse con Github",
diff --git a/src/locales/fr/main.json b/src/locales/fr/main.json
index 489cfb408..e1c546fb3 100644
--- a/src/locales/fr/main.json
+++ b/src/locales/fr/main.json
@@ -46,6 +46,7 @@
       "emailPlaceholder": "Entrez votre email",
       "passwordLabel": "Mot de passe",
       "passwordPlaceholder": "Entrez un nouveau mot de passe",
+      "regionRestrictionChina": "Conformément aux exigences réglementaires locales, nos services ne sont actuellement pas disponibles pour les utilisateurs situés en Chine continentale.",
       "signIn": "Se connecter",
       "signUpButton": "S'inscrire",
       "signUpWithGithub": "S'inscrire avec Github",
diff --git a/src/locales/ja/main.json b/src/locales/ja/main.json
index bd7f41bc1..e9aab053a 100644
--- a/src/locales/ja/main.json
+++ b/src/locales/ja/main.json
@@ -46,6 +46,7 @@
       "emailPlaceholder": "メールアドレスを入力してください",
       "passwordLabel": "パスワード",
       "passwordPlaceholder": "新しいパスワードを入力してください",
+      "regionRestrictionChina": "現地の規制要件に従い、当社のサービスは現在中国本土のユーザーにはご利用いただけません。",
       "signIn": "サインイン",
       "signUpButton": "サインアップ",
       "signUpWithGithub": "Githubでサインアップ",
diff --git a/src/locales/ko/main.json b/src/locales/ko/main.json
index 2cb2f1d1a..8802d80cb 100644
--- a/src/locales/ko/main.json
+++ b/src/locales/ko/main.json
@@ -46,6 +46,7 @@
       "emailPlaceholder": "이메일을 입력하세요",
       "passwordLabel": "비밀번호",
       "passwordPlaceholder": "새 비밀번호를 입력하세요",
+      "regionRestrictionChina": "현지 규제 요건에 따라, 본 서비스는 현재 중국 본토에 위치한 사용자에게 제공되지 않습니다.",
       "signIn": "로그인",
       "signUpButton": "가입하기",
       "signUpWithGithub": "Github로 가입하기",
diff --git a/src/locales/ru/main.json b/src/locales/ru/main.json
index f0df1621d..e0953186d 100644
--- a/src/locales/ru/main.json
+++ b/src/locales/ru/main.json
@@ -46,6 +46,7 @@
       "emailPlaceholder": "Введите вашу электронную почту",
       "passwordLabel": "Пароль",
       "passwordPlaceholder": "Введите новый пароль",
+      "regionRestrictionChina": "В соответствии с местными нормативными требованиями наши услуги в настоящее время недоступны для пользователей, находящихся в материковом Китае.",
       "signIn": "Войти",
       "signUpButton": "Зарегистрироваться",
       "signUpWithGithub": "Зарегистрироваться через Github",
diff --git a/src/locales/zh/main.json b/src/locales/zh/main.json
index 9dba863ac..3815c989c 100644
--- a/src/locales/zh/main.json
+++ b/src/locales/zh/main.json
@@ -46,6 +46,7 @@
       "emailPlaceholder": "输入您的电子邮件",
       "passwordLabel": "密码",
       "passwordPlaceholder": "输入新密码",
+      "regionRestrictionChina": "根据当地法规要求，我们目前无法为中国大陆地区的用户提供服务。",
       "signIn": "登录",
       "signUpButton": "注册",
       "signUpWithGithub": "使用Github注册",