diff --git a/frontend/src/core/i18n/locale.ts b/frontend/src/core/i18n/locale.ts
index 7fbde14d..07ccba3b 100644
--- a/frontend/src/core/i18n/locale.ts
+++ b/frontend/src/core/i18n/locale.ts
@@ -1,6 +1,6 @@
 export const SUPPORTED_LOCALES = ["en-US", "zh-CN"] as const;
 export type Locale = (typeof SUPPORTED_LOCALES)[number];
-export const DEFAULT_LOCALE: Locale = "en-US";
+export const DEFAULT_LOCALE: Locale = "zh-CN";
 
 export function isLocale(value: string): value is Locale {
   return (SUPPORTED_LOCALES as readonly string[]).includes(value);