diff --git a/src/main/java/com/numberone/backend/domain/token/service/TokenService.java b/src/main/java/com/numberone/backend/domain/token/service/TokenService.java
index 52658fe6..9b96da67 100644
--- a/src/main/java/com/numberone/backend/domain/token/service/TokenService.java
+++ b/src/main/java/com/numberone/backend/domain/token/service/TokenService.java
@@ -19,6 +19,8 @@
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.client.RestTemplate;
 
+import java.util.Optional;
+
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
@@ -42,8 +44,9 @@ public GetTokenResponse loginKakao(GetTokenRequest tokenRequest) {
         try {
             ResponseEntity<KakaoInfoResponse> response = restTemplate.exchange(kakaoProperties.getUser_api_url(), HttpMethod.GET, new HttpEntity<>(null, headers), KakaoInfoResponse.class);
             String email = response.getBody().getKakao_account().getEmail();
-            String realname = response.getBody().getKakao_account().getProfile().getNickname();
-            return getTokenResponse(email, realname);
+            String realName = Optional.ofNullable(response.getBody().getKakao_account().getProfile().getNickname())
+                    .orElse("사용자");
+            return getTokenResponse(email, realName);
         } catch (Exception e) {
             throw new BadRequestSocialTokenException();
         }
@@ -57,9 +60,11 @@ public GetTokenResponse loginNaver(GetTokenRequest tokenRequest) {
 
         try {
             ResponseEntity<NaverInfoResponse> response = restTemplate.exchange(naverProperties.getUser_api_url(), HttpMethod.GET, new HttpEntity<>(null, headers), NaverInfoResponse.class);
+
             String email = response.getBody().getResponse().getEmail();
-            String realname = response.getBody().getResponse().getName();
-            return getTokenResponse(email, realname);
+            String realName = Optional.ofNullable(response.getBody().getResponse().getName())
+                    .orElse("사용자");
+            return getTokenResponse(email, realName);
         } catch (Exception e) {
             throw new BadRequestSocialTokenException();
         }