diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/api/ApiControllerAdvice.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/api/ApiControllerAdvice.java
new file mode 100644
index 0000000..2f8d5cc
--- /dev/null
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/api/ApiControllerAdvice.java
@@ -0,0 +1,80 @@
+package org.haedal.zzansuni.global.api;
+
+import io.jsonwebtoken.JwtException;
+import lombok.extern.slf4j.Slf4j;
+import org.haedal.zzansuni.core.api.ApiResponse;
+import org.haedal.zzansuni.core.api.ErrorCode;
+import org.haedal.zzansuni.global.exception.UnauthorizedException;
+import org.slf4j.MDC;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.util.NoSuchElementException;
+
+@RestControllerAdvice
+@Slf4j
+public class ApiControllerAdvice {
+
+
+
+    /**
+     * http status: 400 AND result: FAIL
+     * 잘못된 요청
+     */
+    @ExceptionHandler
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public ApiResponse<Void> illegalArgumentException(IllegalArgumentException e) {
+        return ApiResponse.fail(ErrorCode.COMMON_INVALID_PARAMETER);
+    }
+
+    /**
+     * http status: 400 AND result: FAIL
+     * 잘못된 요청
+     */
+    @ExceptionHandler
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public ApiResponse<Void> illegalStateException(IllegalStateException e) {
+        return ApiResponse.fail(ErrorCode.COMMON_INVALID_PARAMETER);
+    }
+
+    /**
+     * http status: 404 AND result: FAIL
+     * 존재하지 않는 엔티티
+     */
+    @ExceptionHandler
+    @ResponseStatus(HttpStatus.NOT_FOUND)
+    public ApiResponse<Void> noSuchElementException(NoSuchElementException e) {
+        return ApiResponse.fail(ErrorCode.COMMON_ENTITY_NOT_FOUND);
+    }
+
+
+    /**
+     * http status: 401 AND result: FAIL
+     * 인증 실패
+     */
+    @ExceptionHandler
+    @ResponseStatus(HttpStatus.UNAUTHORIZED)
+    public ApiResponse<Void> onUnauthorizedException(UnauthorizedException e) {
+        return ApiResponse.fail("UNAUTHORIZED", e.getMessage());
+    }
+
+
+
+    /**
+     * http status: 500 AND result: FAIL
+     * 시스템 예외 상황. 집중 모니터링 대상
+     */
+    @ExceptionHandler
+    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
+    public ApiResponse<Void> onException(Exception e) {
+        String eventId = MDC.get(CommonHttpRequestInterceptor.HEADER_REQUEST_UUID_KEY);
+        log.error("eventId = {} ", eventId, e);
+        return ApiResponse.fail(ErrorCode.COMMON_SYSTEM_ERROR);
+    }
+
+
+
+
+}
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/exception/UnauthorizedException.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/exception/UnauthorizedException.java
new file mode 100644
index 0000000..1401f96
--- /dev/null
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/exception/UnauthorizedException.java
@@ -0,0 +1,7 @@
+package org.haedal.zzansuni.global.exception;
+
+public class UnauthorizedException extends RuntimeException{
+    public UnauthorizedException(String message) {
+        super(message);
+    }
+}
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/jwt/JwtUtils.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/jwt/JwtUtils.java
index 9155240..0f33a55 100644
--- a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/jwt/JwtUtils.java
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/jwt/JwtUtils.java
@@ -1,9 +1,9 @@
 package org.haedal.zzansuni.global.jwt;
 
 import io.jsonwebtoken.Claims;
-import io.jsonwebtoken.JwtException;
 import io.jsonwebtoken.Jwts;
 import io.jsonwebtoken.SignatureAlgorithm;
+import org.haedal.zzansuni.global.exception.UnauthorizedException;
 import org.haedal.zzansuni.global.security.Role;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.annotation.Value;
@@ -60,7 +60,7 @@ public boolean validateToken(String rawToken) {
     public String reissueAccessToken(JwtToken.ValidToken refreshToken) {
         Claims claims = extractClaims(refreshToken.getValue());
         if (claims.get(IS_ACCESS_TOKEN, Boolean.class)) {
-            throw new JwtException("RefreshToken이 유효하지 않습니다.");
+            throw new UnauthorizedException("RefreshToken이 유효하지 않습니다.");
         }
         JwtUser jwtUser = claimsToJwtUser(claims);
         return generateToken(jwtUser, true);
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/JwtProvider.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/JwtProvider.java
index b0a1a1c..1cf4f2b 100644
--- a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/JwtProvider.java
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/JwtProvider.java
@@ -1,7 +1,7 @@
 package org.haedal.zzansuni.global.security;
 
-import io.jsonwebtoken.JwtException;
 import lombok.RequiredArgsConstructor;
+import org.haedal.zzansuni.global.exception.UnauthorizedException;
 import org.haedal.zzansuni.global.jwt.JwtToken;
 import org.haedal.zzansuni.global.jwt.JwtUser;
 import org.haedal.zzansuni.global.jwt.JwtUtils;
@@ -32,7 +32,7 @@ public Authentication authenticate(Authentication authentication) throws Authent
 
         // 토큰을 검증하는 단계
         if(!jwtUtils.validateToken(token)){
-            throw new JwtException("유효하지 않은 토큰입니다.");
+            throw new UnauthorizedException("유효하지 않은 토큰입니다.");
         }
         JwtUser jwtUser = jwtUtils.getJwtUser(JwtToken.ValidToken.of(token));
         Set<SimpleGrantedAuthority> authorities = Set.of(new SimpleGrantedAuthority(jwtUser.getRole().name()));
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/WebSecurityConfig.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/WebSecurityConfig.java
index 64d1a98..418185b 100644
--- a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/WebSecurityConfig.java
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/global/security/WebSecurityConfig.java
@@ -2,6 +2,7 @@
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import lombok.RequiredArgsConstructor;
+import org.haedal.zzansuni.core.api.ApiResponse;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.http.MediaType;
@@ -75,20 +76,20 @@ public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
          */
         http.exceptionHandling((exception) -> exception
                 .authenticationEntryPoint((request, response, authException) -> {
-//                    var errorResponse = ErrorResponse.of("권한이 없습니다.");
-//                    var json = objectMapper.writeValueAsString(errorResponse);
+                    var errorResponse = ApiResponse.fail("UNAUTHORIZED", "인증이 필요합니다.");
+                    var json = objectMapper.writeValueAsString(errorResponse);
                     response.setStatus(401);
                     response.setContentType(MediaType.APPLICATION_JSON_VALUE);
-//                    response.getWriter().write(json);
+                    response.getWriter().write(json);
                     response.getWriter().flush();
                 })
                 .accessDeniedHandler((request, response, accessDeniedException) -> {
-//                    var errorResponse = ErrorResponse.of("권한이 없습니다.");
-//                    var json = objectMapper.writeValueAsString(errorResponse);
+                    var errorResponse = ApiResponse.fail("ACCESS_DENIED", "권한이 없습니다.");
+                    var json = objectMapper.writeValueAsString(errorResponse);
 
                     response.setStatus(403);
                     response.setContentType(MediaType.APPLICATION_JSON_VALUE);
-//                    response.getWriter().write(json);
+                    response.getWriter().write(json);
                     response.getWriter().flush();
                 })
         );
diff --git a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/infrastructure/user/UserReaderImpl.java b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/infrastructure/user/UserReaderImpl.java
index 97d5360..d3e7933 100644
--- a/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/infrastructure/user/UserReaderImpl.java
+++ b/zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/infrastructure/user/UserReaderImpl.java
@@ -6,6 +6,7 @@
 import org.haedal.zzansuni.domain.user.UserReader;
 import org.springframework.stereotype.Component;
 
+import java.util.NoSuchElementException;
 import java.util.Optional;
 
 @Component
@@ -15,7 +16,7 @@ public class UserReaderImpl implements UserReader {
 
     @Override
     public User getById(Long id) {
-        return userRepository.findById(id).orElseThrow(EntityNotFoundException::new);
+        return userRepository.findById(id).orElseThrow(NoSuchElementException::new);
     }
 
     @Override