diff --git a/lib/i18n/app_en.arb b/lib/i18n/app_en.arb
index 8b81cb7..c238c9f 100644
--- a/lib/i18n/app_en.arb
+++ b/lib/i18n/app_en.arb
@@ -5,6 +5,7 @@
   "account": "Account",
   "signIn": "Sign In",
   "signInCaption": "Sign in to create post, start a realm, message your friend and more!",
+  "signInRequired": "Sign in required",
   "signUp": "Sign Up",
   "signUpCaption": "Create an account on Solarpass and then get the access of entire Solar Networks!",
   "confirmation": "Confirmation",
diff --git a/lib/i18n/app_zh.arb b/lib/i18n/app_zh.arb
index 3e453d6..48cecba 100644
--- a/lib/i18n/app_zh.arb
+++ b/lib/i18n/app_zh.arb
@@ -5,6 +5,7 @@
   "account": "账号",
   "signIn": "登陆",
   "signInCaption": "登陆以发表帖子、文章、创建领域、和你的朋友聊天，以及获取更多功能！",
+  "signInRequired": "请先登陆",
   "signUp": "注册",
   "signUpCaption": "在 Solarpass 注册一个账号以获得整个 Solar Networks 的存取权！",
   "confirmation": "确认",
diff --git a/lib/screens/chat/index.dart b/lib/screens/chat/index.dart
index 3e575ce..89567ac 100644
--- a/lib/screens/chat/index.dart
+++ b/lib/screens/chat/index.dart
@@ -8,6 +8,7 @@ import 'package:solian/router.dart';
 import 'package:solian/utils/service_url.dart';
 import 'package:solian/widgets/indent_wrapper.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:solian/widgets/signin_required.dart';
 
 class ChatIndexScreen extends StatefulWidget {
   const ChatIndexScreen({super.key});
@@ -50,33 +51,43 @@ class _ChatIndexScreenState extends State<ChatIndexScreen> {
 
   @override
   Widget build(BuildContext context) {
+    final auth = context.read<AuthProvider>();
+
     return IndentWrapper(
       title: AppLocalizations.of(context)!.chat,
-      child: RefreshIndicator(
-        onRefresh: () => fetchChannels(context),
-        child: ListView.builder(
-          itemCount: _channels.length,
-          itemBuilder: (context, index) {
-            final element = _channels[index];
-            return ListTile(
-              leading: const CircleAvatar(
-                backgroundColor: Colors.indigo,
-                child: Icon(Icons.tag, color: Colors.white),
+      child: FutureBuilder(
+          future: auth.isAuthorized(),
+          builder: (context, snapshot) {
+            if (!snapshot.hasData || !snapshot.data!) {
+              return const SignInRequiredScreen();
+            }
+
+            return RefreshIndicator(
+              onRefresh: () => fetchChannels(context),
+              child: ListView.builder(
+                itemCount: _channels.length,
+                itemBuilder: (context, index) {
+                  final element = _channels[index];
+                  return ListTile(
+                    leading: const CircleAvatar(
+                      backgroundColor: Colors.indigo,
+                      child: Icon(Icons.tag, color: Colors.white),
+                    ),
+                    title: Text(element.name),
+                    subtitle: Text(element.description),
+                    onTap: () {
+                      router.pushNamed(
+                        'chat.channel',
+                        pathParameters: {
+                          'channel': element.alias,
+                        },
+                      );
+                    },
+                  );
+                },
               ),
-              title: Text(element.name),
-              subtitle: Text(element.description),
-              onTap: () {
-                router.pushNamed(
-                  'chat.channel',
-                  pathParameters: {
-                    'channel': element.alias,
-                  },
-                );
-              },
             );
-          },
-        ),
-      ),
+          }),
     );
   }
 }
diff --git a/lib/widgets/signin_required.dart b/lib/widgets/signin_required.dart
new file mode 100644
index 0000000..6ab83e0
--- /dev/null
+++ b/lib/widgets/signin_required.dart
@@ -0,0 +1,40 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:solian/router.dart';
+
+class SignInRequiredScreen extends StatelessWidget {
+  const SignInRequiredScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      child: Center(
+        child: Container(
+          constraints: const BoxConstraints(maxWidth: 340),
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              const Icon(Icons.login, size: 40),
+              const SizedBox(height: 20),
+              Text(
+                AppLocalizations.of(context)!.signInRequired,
+                style: Theme.of(context).textTheme.headlineSmall,
+                textAlign: TextAlign.center,
+              ),
+              const SizedBox(height: 20),
+              Text(
+                AppLocalizations.of(context)!.signInCaption,
+                style: Theme.of(context).textTheme.bodyMedium,
+                textAlign: TextAlign.center,
+              )
+            ],
+          ),
+        ),
+      ),
+      onTap: () {
+        router.goNamed('account');
+      },
+    );
+  }
+
+}
\ No newline at end of file