diff --git a/app/error.tsx b/app/error.tsx
new file mode 100644
index 00000000..0c788e08
--- /dev/null
+++ b/app/error.tsx
@@ -0,0 +1,44 @@
+'use client';
+
+import { useRouter } from 'next/navigation';
+import { startTransition } from 'react';
+import Button from '@/shared/ui/button';
+
+export default function ErrorBoundary({
+  error,
+  reset,
+}: {
+  error: Error;
+  reset: () => void;
+}) {
+  const router = useRouter();
+
+  return (
+    <div className="flex h-[calc(100vh-45px)] flex-col items-center justify-center gap-400">
+      <div className="flex flex-col items-center justify-center gap-150">
+        <h1 className="font-designer-28b">
+          서비스 이용에 불편드려 죄송합니다.
+        </h1>
+        <div className="flex flex-col items-center gap-50">
+          <span className="font-designer-16m text-text-subtle">
+            에러가 발생하여 페이지를 표시할 수 없습니다.
+          </span>
+          <span className="font-designer-16m text-text-subtle">
+            잠시 뒤에 다시 시도해주세요.
+          </span>
+        </div>
+      </div>
+      <Button
+        size="large"
+        onClick={() => {
+          startTransition(() => {
+            router.refresh(); // 서버 컴포넌트들을 다시 렌더링
+            reset(); // 에러 상태 초기화
+          });
+        }}
+      >
+        새로고침
+      </Button>
+    </div>
+  );
+}
diff --git a/src/entities/review/model/use-review-query.ts b/src/entities/review/model/use-review-query.ts
index 26d994a0..cbaf66a3 100644
--- a/src/entities/review/model/use-review-query.ts
+++ b/src/entities/review/model/use-review-query.ts
@@ -9,6 +9,7 @@ import {
   UserPositiveKeywordsRequest,
 } from '@/entities/review/api/review-types';
 import { getKoreaDate } from '@/shared/lib/time';
+import { isApiError } from '@/shared/tanstack-query/api-error';
 import {
   addStudyReview,
   getUserPositiveKeywords,
@@ -32,6 +33,15 @@ export const useAddStudyReviewMutation = () => {
       // todo: 모달로 변경
       alert('후기 작성이 완료되었습니다.');
     },
+    onError: (error) => {
+      if (isApiError(error)) {
+        if (error.errorCode === 'CMM001') {
+          alert('이미 후기를 작성했습니다.');
+        } else if (error.errorCode === 'CMM003') {
+          alert('스터디 또는 스터디 멤버가 존재하지 않습니다.');
+        }
+      }
+    },
   });
 };
 
diff --git a/src/entities/user/model/use-user-profile-query.ts b/src/entities/user/model/use-user-profile-query.ts
index 38d00741..bbec6c9f 100644
--- a/src/entities/user/model/use-user-profile-query.ts
+++ b/src/entities/user/model/use-user-profile-query.ts
@@ -6,6 +6,7 @@ import {
 } from '@/entities/user/api/get-user-profile';
 import type { GetUserProfileResponse } from '@/entities/user/api/types';
 import { hashValue } from '@/shared/lib/hash';
+import { isApiError } from '@/shared/tanstack-query/api-error';
 
 export const useUserProfileQuery = (memberId: number) => {
   return useQuery<GetUserProfileResponse>({
@@ -45,10 +46,18 @@ export const usePatchAutoMatchingMutation = () => {
       return { prev };
     },
 
-    onError: (_err, { memberId }, ctx) => {
+    onError: (error, { memberId }, ctx) => {
       if (ctx?.prev) {
         qc.setQueryData(['userProfile', memberId], ctx.prev);
       }
+
+      if (isApiError(error)) {
+        if (error.errorCode === 'MEM004') {
+          alert('아직 스터디를 신청하지 않았습니다. 먼저 스터디 신청해주세요.');
+        } else if (error.errorCode === 'MEM001') {
+          alert('회원 정보가 존재하지 않습니다.');
+        }
+      }
     },
 
     onSuccess: async (_data, { memberId, autoMatching }) => {
diff --git a/src/features/auth/model/use-auth-mutation.ts b/src/features/auth/model/use-auth-mutation.ts
index b81c0725..712e67ff 100644
--- a/src/features/auth/model/use-auth-mutation.ts
+++ b/src/features/auth/model/use-auth-mutation.ts
@@ -5,6 +5,7 @@ import { useMutation, useQueryClient } from '@tanstack/react-query';
 import { useRouter } from 'next/navigation';
 import { logout, signUp, uploadProfileImage } from '@/features/auth/api/auth';
 import { hashValue } from '@/shared/lib/hash';
+import { isApiError } from '@/shared/tanstack-query/api-error';
 import { deleteCookie, getCookie } from '@/shared/tanstack-query/cookie';
 import { SignUpResponse } from './types';
 
@@ -16,6 +17,13 @@ export const useSignUpMutation = () => {
     { name: string; imageExtension: string }
   >({
     mutationFn: (data: any) => signUp(data),
+    onError: (error) => {
+      if (isApiError(error)) {
+        if (error.errorCode === 'DUPLICATE_MEMBER') {
+          alert('이미 가입된 회원입니다.');
+        }
+      }
+    },
   });
 };
 
diff --git a/src/features/my-page/model/use-update-user-profile-mutation.ts b/src/features/my-page/model/use-update-user-profile-mutation.ts
index d49cdaf7..5b34e273 100644
--- a/src/features/my-page/model/use-update-user-profile-mutation.ts
+++ b/src/features/my-page/model/use-update-user-profile-mutation.ts
@@ -1,5 +1,6 @@
 import { useMutation, useQuery } from '@tanstack/react-query';
 import { useRouter } from 'next/navigation';
+import { isApiError } from '@/shared/tanstack-query/api-error';
 import {
   UpdateUserProfileInfoRequest,
   UpdateUserProfileRequest,
@@ -24,6 +25,15 @@ export const useUpdateUserProfileMutation = (memberId: number) => {
     onSuccess: () => {
       router.refresh();
     },
+    onError: (error) => {
+      if (isApiError(error)) {
+        if (error.errorCode === 'MPR001') {
+          alert('관심사가 중복됐습니다.');
+        } else if (error.errorCode === 'MEM001') {
+          alert('회원 정보가 존재하지 않습니다.');
+        }
+      }
+    },
   });
 };