diff --git a/src/apis/client.ts b/src/apis/client.ts
index 4fe088fd..624a0ec6 100644
--- a/src/apis/client.ts
+++ b/src/apis/client.ts
@@ -163,6 +163,14 @@ async function handleUnauthorized<T = unknown, P extends object = Record<string,
     const newAccessToken = await refreshPromise;
     useAuthStore.getState().setAccessToken(newAccessToken);
 
+    try {
+      if (window.ReactNativeWebView) {
+        window.ReactNativeWebView.postMessage(JSON.stringify({ type: 'TOKEN_REFRESH', accessToken: newAccessToken }));
+      }
+    } catch {
+      // 브릿지 전달 실패가 인증 흐름을 중단시키지 않도록 무시
+    }
+
     return await sendRequestWithoutRetry<T, P>(endPoint, options, timeout);
   } catch {
     useAuthStore.getState().clearAuth();
diff --git a/src/apis/notification/index.ts b/src/apis/notification/index.ts
index 41e25d49..d90d626d 100644
--- a/src/apis/notification/index.ts
+++ b/src/apis/notification/index.ts
@@ -1,6 +1,13 @@
 import { apiClient } from '../client';
 
 export const registerPushToken = async (token: string) => {
+  if (window.ReactNativeWebView) {
+    if (import.meta.env.DEV) {
+      console.log('RN WebView 환경: 웹에서 푸시 토큰 등록 생략 (네이티브가 처리)');
+    }
+    return;
+  }
+
   const response = await apiClient.post('notifications/tokens', {
     body: { token },
     requiresAuth: true,
diff --git a/src/global.d.ts b/src/global.d.ts
new file mode 100644
index 00000000..c591fa31
--- /dev/null
+++ b/src/global.d.ts
@@ -0,0 +1,5 @@
+interface Window {
+  ReactNativeWebView?: {
+    postMessage: (message: string) => void;
+  };
+}
diff --git a/src/pages/User/MyPage/hooks/useLogout.ts b/src/pages/User/MyPage/hooks/useLogout.ts
index 2481f535..89e085ff 100644
--- a/src/pages/User/MyPage/hooks/useLogout.ts
+++ b/src/pages/User/MyPage/hooks/useLogout.ts
@@ -10,6 +10,13 @@ export const useLogoutMutation = () => {
   return useMutation({
     mutationFn: logout,
     onSuccess: () => {
+      try {
+        if (window.ReactNativeWebView) {
+          window.ReactNativeWebView.postMessage(JSON.stringify({ type: 'LOGOUT' }));
+        }
+      } catch {
+        // 브릿지 전달 실패가 로그아웃 흐름을 중단시키지 않도록 무시
+      }
       clearAuth();
       navigate('/');
     },
diff --git a/src/stores/authStore.ts b/src/stores/authStore.ts
index 2a22139d..fb8b7e38 100644
--- a/src/stores/authStore.ts
+++ b/src/stores/authStore.ts
@@ -1,29 +1,6 @@
 import { create } from 'zustand';
 import { getMyInfo, refreshAccessToken } from '@/apis/auth';
 import type { MyInfoResponse } from '@/apis/auth/entity';
-import { registerPushToken } from '@/apis/notification';
-
-const PUSH_TOKEN_STORAGE_KEY = 'REGISTERED_PUSH_TOKEN';
-const PENDING_PUSH_TOKEN_KEY = 'PENDING_PUSH_TOKEN';
-
-async function registerPushTokenIfNeeded() {
-  const token = localStorage.getItem(PENDING_PUSH_TOKEN_KEY);
-  if (!token) return;
-
-  const lastRegisteredToken = localStorage.getItem(PUSH_TOKEN_STORAGE_KEY);
-  if (lastRegisteredToken === token) {
-    localStorage.removeItem(PENDING_PUSH_TOKEN_KEY);
-    return;
-  }
-
-  try {
-    await registerPushToken(token);
-    localStorage.setItem(PUSH_TOKEN_STORAGE_KEY, token);
-    localStorage.removeItem(PENDING_PUSH_TOKEN_KEY);
-  } catch (error) {
-    console.error('푸시 토큰 등록 실패:', error);
-  }
-}
 
 interface AuthState {
   user: MyInfoResponse | null;
@@ -50,14 +27,20 @@ export const useAuthStore = create<AuthState>((set, get) => ({
     }
 
     try {
-      // 1. 토큰 갱신 (필수 - 이후 API 호출에 필요)
       const accessToken = await refreshAccessToken();
       set({ accessToken });
 
-      // 2. 사용자 정보와 푸시 토큰 등록을 병렬로 실행
-      const [user] = await Promise.all([getMyInfo(), registerPushTokenIfNeeded()]);
+      const user = await getMyInfo();
 
       set({ user, isAuthenticated: true, isLoading: false });
+
+      try {
+        if (window.ReactNativeWebView) {
+          window.ReactNativeWebView.postMessage(JSON.stringify({ type: 'LOGIN_COMPLETE', accessToken }));
+        }
+      } catch {
+        // 브릿지 전달 실패가 인증 성공 상태를 롤백시키지 않도록 무시
+      }
     } catch {
       set({ user: null, accessToken: null, isAuthenticated: false, isLoading: false });
     }
@@ -71,26 +54,3 @@ export const useAuthStore = create<AuthState>((set, get) => ({
 
   clearAuth: () => set({ user: null, accessToken: null, isAuthenticated: false, isLoading: false }),
 }));
-
-window.addEventListener('message', (event: MessageEvent) => {
-  try {
-    const data = JSON.parse(event.data);
-    if (data.type !== 'PUSH_TOKEN' || !data.token) return;
-
-    const lastToken = localStorage.getItem(PUSH_TOKEN_STORAGE_KEY);
-    if (lastToken === data.token) return;
-
-    const { accessToken } = useAuthStore.getState();
-    if (!accessToken) {
-      // initialize() 완료 전 도착한 경우 — pending으로 저장 후 initialize()에서 처리
-      localStorage.setItem(PENDING_PUSH_TOKEN_KEY, data.token);
-      return;
-    }
-
-    registerPushToken(data.token)
-      .then(() => localStorage.setItem(PUSH_TOKEN_STORAGE_KEY, data.token))
-      .catch((error) => console.error('푸시 토큰 등록 실패:', error));
-  } catch {
-    // JSON 파싱 실패 등 무시
-  }
-});