diff --git a/src/main/java/com/example/helloworldmvc/converter/UserConverter.java b/src/main/java/com/example/helloworldmvc/converter/UserConverter.java
index 4e1c251..2f2f50a 100644
--- a/src/main/java/com/example/helloworldmvc/converter/UserConverter.java
+++ b/src/main/java/com/example/helloworldmvc/converter/UserConverter.java
@@ -37,9 +37,10 @@ public static UserResponseDTO.OAuthResponse toOAuthResponse(TokenDTO accessToken
                 .build();
     }
 
-    public static TokenListDTO toTokenList(List<TokenDTO> tokens){
+    public static TokenListDTO toTokenList(List<TokenDTO> tokens, Boolean isExist){
         return TokenListDTO.builder()
                 .tokenList(tokens)
+                .isExist(isExist)
                 .build();
     }
 }
diff --git a/src/main/java/com/example/helloworldmvc/service/GoogleServiceImpl.java b/src/main/java/com/example/helloworldmvc/service/GoogleServiceImpl.java
index 71589f8..9e7acf3 100644
--- a/src/main/java/com/example/helloworldmvc/service/GoogleServiceImpl.java
+++ b/src/main/java/com/example/helloworldmvc/service/GoogleServiceImpl.java
@@ -96,8 +96,9 @@ public TokenListDTO loginGoogle(String token) {
             List<TokenDTO> tokenDTOList = new ArrayList<>();
             tokenDTOList.add(refreshToken);
             tokenDTOList.add(accessToken);
-
-            return UserConverter.toTokenList(tokenDTOList);
+            // 로그인 진행
+            boolean isExist = true;
+            return UserConverter.toTokenList(tokenDTOList, isExist);
         } else {
             User user = userRepository.save(UserConverter.toGoogleUser(googleProfile));
             TokenDTO accessToken = jwtTokenProvider.createAccessToken(user.getEmail());
@@ -107,8 +108,9 @@ public TokenListDTO loginGoogle(String token) {
             List<TokenDTO> tokenDTOList = new ArrayList<>();
             tokenDTOList.add(refreshToken);
             tokenDTOList.add(accessToken);
-
-            return UserConverter.toTokenList(tokenDTOList);
+            // 회원가입 진행
+            boolean isExist = false;
+            return UserConverter.toTokenList(tokenDTOList, isExist);
         }
     }
 
@@ -139,7 +141,8 @@ public TokenListDTO reissueToken(String token) {
         // Redis에 refresh token 업데이트
         redisTemplate.opsForValue().set("RT:" + email, newRefreshToken.getToken(), newRefreshToken.getTokenExpriresTime().getTime(), TimeUnit.MILLISECONDS);
 
-        return UserConverter.toTokenList(tokenDTOList);
+        Boolean isExist = true;
+        return UserConverter.toTokenList(tokenDTOList, isExist);
     }
 
     @Override
diff --git a/src/main/java/com/example/helloworldmvc/service/UserServiceImpl.java b/src/main/java/com/example/helloworldmvc/service/UserServiceImpl.java
index f95c08a..0a96763 100644
--- a/src/main/java/com/example/helloworldmvc/service/UserServiceImpl.java
+++ b/src/main/java/com/example/helloworldmvc/service/UserServiceImpl.java
@@ -40,8 +40,9 @@ public TokenListDTO loginGmail(UserRequestDTO.GoogleEmailRequest request) {
         List<TokenDTO> tokenDTOList = new ArrayList<>();
         tokenDTOList.add(refreshToken);
         tokenDTOList.add(accessToken);
+        Boolean isExist = true;
 
-        return UserConverter.toTokenList(tokenDTOList);
+        return UserConverter.toTokenList(tokenDTOList, isExist);
 
     }
 
diff --git a/src/main/java/com/example/helloworldmvc/web/controller/UserController.java b/src/main/java/com/example/helloworldmvc/web/controller/UserController.java
index 1c630a8..fc37128 100644
--- a/src/main/java/com/example/helloworldmvc/web/controller/UserController.java
+++ b/src/main/java/com/example/helloworldmvc/web/controller/UserController.java
@@ -79,7 +79,7 @@ public ApiResponse<TokenListDTO> loginGoogleEmail(@RequestBody @Valid UserReques
             @io.swagger.v3.oas.annotations.responses.ApiResponse(responseCode = "COMMON200", description = "OK, 성공"),
     })
     @Parameters({
-            @Parameter(name = "token", description = "query string(RequestParam) - refreshToken 입력"),
+            @Parameter(name = "RTK", description = "query string(RequestParam) - refreshToken 입력"),
     })
     @GetMapping("/login/reissue")
     public ApiResponse<TokenListDTO> reissueGoogleLoginInfo(@RequestParam(value = "RTK") String token) {
diff --git a/src/main/java/com/example/helloworldmvc/web/dto/TokenListDTO.java b/src/main/java/com/example/helloworldmvc/web/dto/TokenListDTO.java
index f43989c..6d0906d 100644
--- a/src/main/java/com/example/helloworldmvc/web/dto/TokenListDTO.java
+++ b/src/main/java/com/example/helloworldmvc/web/dto/TokenListDTO.java
@@ -10,4 +10,5 @@
 @Builder
 public class TokenListDTO {
     private List<TokenDTO> tokenList;
+    private Boolean isExist;            // 회원여부 (0:비회원, 1:회원)
 }