diff --git a/src/main/java/org/prgrms/nabimarketbe/domain/user/service/SignService.java b/src/main/java/org/prgrms/nabimarketbe/domain/user/service/SignService.java
index 4480362b..78cd2856 100644
--- a/src/main/java/org/prgrms/nabimarketbe/domain/user/service/SignService.java
+++ b/src/main/java/org/prgrms/nabimarketbe/domain/user/service/SignService.java
@@ -8,8 +8,6 @@
 import org.prgrms.nabimarketbe.domain.user.repository.UserRepository;
 import org.prgrms.nabimarketbe.global.security.jwt.dto.TokenDTO;
 import org.prgrms.nabimarketbe.global.security.jwt.provider.JwtProvider;
-import org.prgrms.nabimarketbe.global.util.ResponseFactory;
-import org.prgrms.nabimarketbe.global.util.model.CommonResult;
 import org.prgrms.nabimarketbe.oauth2.google.dto.GoogleUserInfoDTO;
 import org.prgrms.nabimarketbe.oauth2.kakao.dto.KakaoProfile;
 import org.springframework.stereotype.Service;
@@ -31,30 +29,33 @@ public class SignService {
     private final RandomNicknameGenerator randomNicknameGenerator;
 
     @Transactional
-    public CommonResult signInBySocial(KakaoProfile kakaoProfile) {
-        CommonResult result = signIn(UserSignInRequestDTO.builder()
+    public UserLoginResponseDTO signInBySocial(KakaoProfile kakaoProfile) {
+        UserSignInRequestDTO userSignInRequestDTO = UserSignInRequestDTO.builder()
                 .accountId(kakaoProfile.getId())
                 .nickname(kakaoProfile.getProperties().getNickname())
                 .provider("kakao")
-                .build());
+                .build();
 
-        return ResponseFactory.getSingleResult(result);
+        UserLoginResponseDTO result = signIn(userSignInRequestDTO);
+
+        return result;
     }
+
     @Transactional
-    public CommonResult signIn(UserSignInRequestDTO userSignInRequestDTO) {
-        Optional<User> user = userRepository.findByAccountIdAndProvider(
-                userSignInRequestDTO.accountId(),
-                userSignInRequestDTO.provider()
-        );
-
-        if (user.isPresent()) {
-            return ResponseFactory.getSingleResult(jwtProvider.createTokenDTO(
-                    user.get().getUserId(), user.get().getRole())
-            );
-        }
-
-        User savedUser = userRepository.save(userSignInRequestDTO.toEntity());
-        return ResponseFactory.getSingleResult(jwtProvider.createTokenDTO(savedUser.getUserId(), savedUser.getRole()));
+    public UserLoginResponseDTO signIn(UserSignInRequestDTO userSignInRequestDTO) {
+        String accountId = userSignInRequestDTO.accountId();
+
+        Optional<User> optionalUser = userRepository.findByAccountId(accountId);
+
+        User user = optionalUser.orElseGet(() -> {
+            return userRepository.save(userSignInRequestDTO.toEntity());
+        });
+
+        TokenDTO tokenDTO = jwtProvider.createTokenDTO(user.getUserId(), user.getRole());
+
+        UserLoginResponseDTO response = UserLoginResponseDTO.of(user, tokenDTO);
+
+        return response;
     }
 
     @Transactional
diff --git a/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/api/OAuth2Controller.java b/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/api/OAuth2Controller.java
index 37163673..58df02f3 100644
--- a/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/api/OAuth2Controller.java
+++ b/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/api/OAuth2Controller.java
@@ -4,22 +4,16 @@
 
 import javax.servlet.http.HttpServletResponse;
 
+import org.prgrms.nabimarketbe.domain.user.dto.response.UserLoginResponseDTO;
 import org.prgrms.nabimarketbe.domain.user.service.SignService;
 import org.prgrms.nabimarketbe.global.util.ResponseFactory;
 import org.prgrms.nabimarketbe.global.util.model.CommonResult;
 import org.prgrms.nabimarketbe.oauth2.kakao.dto.KakaoProfile;
 import org.prgrms.nabimarketbe.oauth2.kakao.service.OAuth2Service;
 import org.springframework.core.env.Environment;
-import org.springframework.http.HttpEntity;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
+import org.springframework.http.*;
 import org.springframework.util.MultiValueMap;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 import org.springframework.web.client.RestTemplate;
 
 import lombok.RequiredArgsConstructor;
@@ -45,7 +39,7 @@ public void socialLogin(HttpServletResponse response) throws IOException {
     }
 
     @GetMapping(value = "/redirect")
-    public CommonResult redirectKakao(@RequestParam String code) {
+    public UserLoginResponseDTO redirectKakao(@RequestParam String code) {
         KakaoProfile profile = OAuth2Service.getResultProfile(code);
         if (profile == null) throw new RuntimeException("카카오에 해당 회원이 없습니다.");
 
diff --git a/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/service/OAuth2Service.java b/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/service/OAuth2Service.java
index 04db56b5..93be90d3 100644
--- a/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/service/OAuth2Service.java
+++ b/src/main/java/org/prgrms/nabimarketbe/oauth2/kakao/service/OAuth2Service.java
@@ -1,8 +1,10 @@
 package org.prgrms.nabimarketbe.oauth2.kakao.service;
 
 import com.google.gson.Gson;
+
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+
 import org.prgrms.nabimarketbe.oauth2.kakao.dto.KakaoProfile;
 import org.prgrms.nabimarketbe.oauth2.kakao.dto.RetKakaoOAuth;
 import org.springframework.beans.factory.annotation.Value;