diff --git a/packages/cli/src/i18n/locales/en.js b/packages/cli/src/i18n/locales/en.js
index 41026026..a20812fd 100644
--- a/packages/cli/src/i18n/locales/en.js
+++ b/packages/cli/src/i18n/locales/en.js
@@ -762,6 +762,27 @@ export default {
     'Press any key to return to authentication type selection.',
   'Waiting for Qwen OAuth authentication...':
     'Waiting for Qwen OAuth authentication...',
+  'Note: Your existing API key in settings.json will not be cleared when using Qwen OAuth. You can switch back to OpenAI authentication later if needed.':
+    'Note: Your existing API key in settings.json will not be cleared when using Qwen OAuth. You can switch back to OpenAI authentication later if needed.',
+  'Authentication timed out. Please try again.':
+    'Authentication timed out. Please try again.',
+  'Waiting for auth... (Press ESC or CTRL+C to cancel)':
+    'Waiting for auth... (Press ESC or CTRL+C to cancel)',
+  'Failed to authenticate. Message: {{message}}':
+    'Failed to authenticate. Message: {{message}}',
+  'Authenticated successfully with {{authType}} credentials.':
+    'Authenticated successfully with {{authType}} credentials.',
+  'Invalid QWEN_DEFAULT_AUTH_TYPE value: "{{value}}". Valid values are: {{validValues}}':
+    'Invalid QWEN_DEFAULT_AUTH_TYPE value: "{{value}}". Valid values are: {{validValues}}',
+  'OpenAI Configuration Required': 'OpenAI Configuration Required',
+  'Please enter your OpenAI configuration. You can get an API key from':
+    'Please enter your OpenAI configuration. You can get an API key from',
+  'API Key:': 'API Key:',
+  'Invalid credentials: {{errorMessage}}':
+    'Invalid credentials: {{errorMessage}}',
+  'Failed to validate credentials': 'Failed to validate credentials',
+  'Press Enter to continue, Tab/↑↓ to navigate, Esc to cancel':
+    'Press Enter to continue, Tab/↑↓ to navigate, Esc to cancel',
 
   // ============================================================================
   // Dialogs - Model
diff --git a/packages/cli/src/i18n/locales/zh.js b/packages/cli/src/i18n/locales/zh.js
index 1421ab7c..329547de 100644
--- a/packages/cli/src/i18n/locales/zh.js
+++ b/packages/cli/src/i18n/locales/zh.js
@@ -718,6 +718,24 @@ export default {
   'Press any key to return to authentication type selection.':
     '按任意键返回认证类型选择',
   'Waiting for Qwen OAuth authentication...': '正在等待 Qwen OAuth 认证...',
+  'Note: Your existing API key in settings.json will not be cleared when using Qwen OAuth. You can switch back to OpenAI authentication later if needed.':
+    '注意：使用 Qwen OAuth 时，settings.json 中现有的 API 密钥不会被清除。如果需要，您可以稍后切换回 OpenAI 认证。',
+  'Authentication timed out. Please try again.': '认证超时。请重试。',
+  'Waiting for auth... (Press ESC or CTRL+C to cancel)':
+    '正在等待认证...（按 ESC 或 CTRL+C 取消）',
+  'Failed to authenticate. Message: {{message}}': '认证失败。消息：{{message}}',
+  'Authenticated successfully with {{authType}} credentials.':
+    '使用 {{authType}} 凭据成功认证。',
+  'Invalid QWEN_DEFAULT_AUTH_TYPE value: "{{value}}". Valid values are: {{validValues}}':
+    '无效的 QWEN_DEFAULT_AUTH_TYPE 值："{{value}}"。有效值为：{{validValues}}',
+  'OpenAI Configuration Required': '需要配置 OpenAI',
+  'Please enter your OpenAI configuration. You can get an API key from':
+    '请输入您的 OpenAI 配置。您可以从以下地址获取 API 密钥：',
+  'API Key:': 'API 密钥：',
+  'Invalid credentials: {{errorMessage}}': '凭据无效：{{errorMessage}}',
+  'Failed to validate credentials': '验证凭据失败',
+  'Press Enter to continue, Tab/↑↓ to navigate, Esc to cancel':
+    '按 Enter 继续，Tab/↑↓ 导航，Esc 取消',
 
   // ============================================================================
   // Dialogs - Model
diff --git a/packages/cli/src/ui/auth/AuthDialog.tsx b/packages/cli/src/ui/auth/AuthDialog.tsx
index f3483635..80c13b0b 100644
--- a/packages/cli/src/ui/auth/AuthDialog.tsx
+++ b/packages/cli/src/ui/auth/AuthDialog.tsx
@@ -146,9 +146,9 @@ export function AuthDialog(): React.JSX.Element {
       {hasApiKey && currentSelectedAuthType === AuthType.QWEN_OAUTH && (
         <Box marginTop={1}>
           <Text color={Colors.Gray}>
-            Note: Your existing API key in settings.json will not be cleared
-            when using Qwen OAuth. You can switch back to OpenAI authentication
-            later if needed.
+            {t(
+              'Note: Your existing API key in settings.json will not be cleared when using Qwen OAuth. You can switch back to OpenAI authentication later if needed.',
+            )}
           </Text>
         </Box>
       )}
diff --git a/packages/cli/src/ui/auth/AuthInProgress.tsx b/packages/cli/src/ui/auth/AuthInProgress.tsx
index 6270ecf1..3269946d 100644
--- a/packages/cli/src/ui/auth/AuthInProgress.tsx
+++ b/packages/cli/src/ui/auth/AuthInProgress.tsx
@@ -10,6 +10,7 @@ import { Box, Text } from 'ink';
 import Spinner from 'ink-spinner';
 import { theme } from '../semantic-colors.js';
 import { useKeypress } from '../hooks/useKeypress.js';
+import { t } from '../../i18n/index.js';
 
 interface AuthInProgressProps {
   onTimeout: () => void;
@@ -48,13 +49,13 @@ export function AuthInProgress({
     >
       {timedOut ? (
         <Text color={theme.status.error}>
-          Authentication timed out. Please try again.
+          {t('Authentication timed out. Please try again.')}
         </Text>
       ) : (
         <Box>
           <Text>
-            <Spinner type="dots" /> Waiting for auth... (Press ESC or CTRL+C to
-            cancel)
+            <Spinner type="dots" />{' '}
+            {t('Waiting for auth... (Press ESC or CTRL+C to cancel)')}
           </Text>
         </Box>
       )}
diff --git a/packages/cli/src/ui/auth/useAuth.ts b/packages/cli/src/ui/auth/useAuth.ts
index 04da911c..d2369690 100644
--- a/packages/cli/src/ui/auth/useAuth.ts
+++ b/packages/cli/src/ui/auth/useAuth.ts
@@ -18,6 +18,7 @@ import type { OpenAICredentials } from '../components/OpenAIKeyPrompt.js';
 import { useQwenAuth } from '../hooks/useQwenAuth.js';
 import { AuthState, MessageType } from '../types.js';
 import type { HistoryItem } from '../types.js';
+import { t } from '../../i18n/index.js';
 
 export type { QwenAuthState } from '../hooks/useQwenAuth.js';
 
@@ -60,7 +61,9 @@ export const useAuthCommand = (
   const handleAuthFailure = useCallback(
     (error: unknown) => {
       setIsAuthenticating(false);
-      const errorMessage = `Failed to authenticate. Message: ${getErrorMessage(error)}`;
+      const errorMessage = t('Failed to authenticate. Message: {{message}}', {
+        message: getErrorMessage(error),
+      });
       onAuthError(errorMessage);
 
       // Log authentication failure
@@ -127,7 +130,9 @@ export const useAuthCommand = (
       addItem(
         {
           type: MessageType.INFO,
-          text: `Authenticated successfully with ${authType} credentials.`,
+          text: t('Authenticated successfully with {{authType}} credentials.', {
+            authType,
+          }),
         },
         Date.now(),
       );
@@ -225,7 +230,13 @@ export const useAuthCommand = (
       )
     ) {
       onAuthError(
-        `Invalid QWEN_DEFAULT_AUTH_TYPE value: "${defaultAuthType}". Valid values are: ${[AuthType.QWEN_OAUTH, AuthType.USE_OPENAI].join(', ')}`,
+        t(
+          'Invalid QWEN_DEFAULT_AUTH_TYPE value: "{{value}}". Valid values are: {{validValues}}',
+          {
+            value: defaultAuthType,
+            validValues: [AuthType.QWEN_OAUTH, AuthType.USE_OPENAI].join(', '),
+          },
+        ),
       );
     }
   }, [onAuthError]);
diff --git a/packages/cli/src/ui/components/OpenAIKeyPrompt.tsx b/packages/cli/src/ui/components/OpenAIKeyPrompt.tsx
index 0dc89bc7..ae65d358 100644
--- a/packages/cli/src/ui/components/OpenAIKeyPrompt.tsx
+++ b/packages/cli/src/ui/components/OpenAIKeyPrompt.tsx
@@ -10,6 +10,7 @@ import { z } from 'zod';
 import { Box, Text } from 'ink';
 import { Colors } from '../colors.js';
 import { useKeypress } from '../hooks/useKeypress.js';
+import { t } from '../../i18n/index.js';
 
 interface OpenAIKeyPromptProps {
   onSubmit: (apiKey: string, baseUrl: string, model: string) => void;
@@ -64,9 +65,11 @@ export function OpenAIKeyPrompt({
         const errorMessage = error.errors
           .map((e) => `${e.path.join('.')}: ${e.message}`)
           .join(', ');
-        setValidationError(`Invalid credentials: ${errorMessage}`);
+        setValidationError(
+          t('Invalid credentials: {{errorMessage}}', { errorMessage }),
+        );
       } else {
-        setValidationError('Failed to validate credentials');
+        setValidationError(t('Failed to validate credentials'));
       }
     }
   };
@@ -205,7 +208,7 @@ export function OpenAIKeyPrompt({
       width="100%"
     >
       <Text bold color={Colors.AccentBlue}>
-        OpenAI Configuration Required
+        {t('OpenAI Configuration Required')}
       </Text>
       {validationError && (
         <Box marginTop={1}>
@@ -214,7 +217,9 @@ export function OpenAIKeyPrompt({
       )}
       <Box marginTop={1}>
         <Text>
-          Please enter your OpenAI configuration. You can get an API key from{' '}
+          {t(
+            'Please enter your OpenAI configuration. You can get an API key from',
+          )}{' '}
           <Text color={Colors.AccentBlue}>
             https://bailian.console.aliyun.com/?tab=model#/api-key
           </Text>
@@ -225,7 +230,7 @@ export function OpenAIKeyPrompt({
           <Text
             color={currentField === 'apiKey' ? Colors.AccentBlue : Colors.Gray}
           >
-            API Key:
+            {t('API Key:')}
           </Text>
         </Box>
         <Box flexGrow={1}>
@@ -240,7 +245,7 @@ export function OpenAIKeyPrompt({
           <Text
             color={currentField === 'baseUrl' ? Colors.AccentBlue : Colors.Gray}
           >
-            Base URL:
+            {t('Base URL:')}
           </Text>
         </Box>
         <Box flexGrow={1}>
@@ -255,7 +260,7 @@ export function OpenAIKeyPrompt({
           <Text
             color={currentField === 'model' ? Colors.AccentBlue : Colors.Gray}
           >
-            Model:
+            {t('Model:')}
           </Text>
         </Box>
         <Box flexGrow={1}>
@@ -267,7 +272,7 @@ export function OpenAIKeyPrompt({
       </Box>
       <Box marginTop={1}>
         <Text color={Colors.Gray}>
-          Press Enter to continue, Tab/↑↓ to navigate, Esc to cancel
+          {t('Press Enter to continue, Tab/↑↓ to navigate, Esc to cancel')}
         </Text>
       </Box>
     </Box>