diff --git a/src/main/java/org/winey/server/service/auth/AuthService.java b/src/main/java/org/winey/server/service/auth/AuthService.java
index 0dd6cdd..61e1a1a 100644
--- a/src/main/java/org/winey/server/service/auth/AuthService.java
+++ b/src/main/java/org/winey/server/service/auth/AuthService.java
@@ -3,6 +3,7 @@
 import java.util.Random;
 import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.winey.server.config.jwt.JwtService;
@@ -25,6 +26,7 @@
 import org.winey.server.service.auth.apple.AppleSignInService;
 import org.winey.server.service.auth.kakao.KakaoSignInService;
 
+@Slf4j
 @Service
 @RequiredArgsConstructor
 public class AuthService {
@@ -45,10 +47,12 @@ public class AuthService {
     @Transactional
     public SignInResponseDto signIn(String socialAccessToken, SignInRequestDto requestDto) {
         SocialType socialType = SocialType.valueOf(requestDto.getSocialType());
+        log.info("after get social type");
         String socialId = login(socialType, socialAccessToken);
+        log.info("after get social info");
 
         Boolean isRegistered = userRepository.existsBySocialIdAndSocialType(socialId, socialType);
-
+        log.info("after check isRegistered");
         if (!isRegistered) {
             String randomString= new Random().ints(6, 0, 36).mapToObj(i -> Character.toString("abcdefghijklmnopqrstuvwxyz0123456789".charAt(i))).collect(Collectors.joining());
             while (userRepository.existsByNickname("위니"+randomString)) {
diff --git a/src/main/java/org/winey/server/service/auth/kakao/KakaoSignInService.java b/src/main/java/org/winey/server/service/auth/kakao/KakaoSignInService.java
index 2d0f213..dff4732 100644
--- a/src/main/java/org/winey/server/service/auth/kakao/KakaoSignInService.java
+++ b/src/main/java/org/winey/server/service/auth/kakao/KakaoSignInService.java
@@ -3,6 +3,7 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.gson.JsonArray;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
@@ -12,6 +13,7 @@
 
 import java.util.Map;
 
+@Slf4j
 @Service
 @RequiredArgsConstructor
 public class KakaoSignInService {
@@ -24,7 +26,9 @@ public String getKaKaoId(String accessToken) {
         headers.add("Authorization","Bearer "+ accessToken);
         HttpEntity<JsonArray> httpEntity = new HttpEntity<>(headers);
         ResponseEntity<Object> responseData;
+        log.info("before kakao post");
         responseData = restTemplate.postForEntity(KAKAO_URL,httpEntity,Object.class);
+        log.info("after kakao post");
         ObjectMapper objectMapper = new ObjectMapper();
         return objectMapper.convertValue(responseData.getBody(), Map.class).get("id").toString(); //소셜 id만 가져오는듯.
     }