diff --git a/src/locales/i18n.ts b/src/locales/i18n.ts
index 390c757..7d9b0e8 100644
--- a/src/locales/i18n.ts
+++ b/src/locales/i18n.ts
@@ -1,10 +1,39 @@
 import i18n from 'i18next';
 import { initReactI18next } from 'react-i18next';
 import LanguageDetector from 'i18next-browser-languagedetector';
+import appBridge from '@/utils/appBridge';
 
 import ko from './ko.json';
 import en from './en.json';
 
+// 초기 언어 설정
+let initialLanguage = 'ko';
+
+// 네이티브 환경이 아닐 때는 localStorage에서 확인
+if (!appBridge.isNativeEnvironment()) {
+  const storedLanguage = localStorage.getItem('i18nextLng');
+  if (storedLanguage && (storedLanguage === 'ko' || storedLanguage === 'en')) {
+    initialLanguage = storedLanguage;
+  }
+} else {
+  // 네이티브 환경에서는 네이티브 언어를 가져와 localStorage에 설정
+  try {
+    appBridge.getLanguage().then((language) => {
+      if (language && typeof language === 'string' && (language === 'ko' || language === 'en')) {
+        localStorage.setItem('i18nextLng', language);
+        // i18n이 이미 초기화된 경우 언어 변경
+        if (i18n.isInitialized && i18n.language !== language) {
+          i18n.changeLanguage(language);
+        }
+      }
+    }).catch((error) => {
+      console.warn('Failed to get native language during init:', error);
+    });
+  } catch (error) {
+    console.warn('Failed to get native language:', error);
+  }
+}
+
 i18n
   .use(LanguageDetector)
   .use(initReactI18next)
@@ -13,7 +42,7 @@ i18n
       en: {translation: en},
       ko: {translation: ko},
     },
-    lng: 'ko',
+    lng: initialLanguage,
     fallbackLng: 'ko',
     debug: true,
     interpolation: {
diff --git a/src/pages/setting/setting-page.tsx b/src/pages/setting/setting-page.tsx
index d31d5ed..bdc6f42 100644
--- a/src/pages/setting/setting-page.tsx
+++ b/src/pages/setting/setting-page.tsx
@@ -87,6 +87,7 @@ export const SettingPage = () => {
       // i18n 언어도 동기화
       if (i18n.language !== language) {
         i18n.changeLanguage(language);
+        localStorage.setItem('i18nextLng', language);
       }
     });
   }, [getLanguage, i18n]);