diff --git a/src/main/java/EatPic/spring/domain/user/controller/UserController.java b/src/main/java/EatPic/spring/domain/user/controller/UserController.java
index fed1147..934ec3f 100644
--- a/src/main/java/EatPic/spring/domain/user/controller/UserController.java
+++ b/src/main/java/EatPic/spring/domain/user/controller/UserController.java
@@ -4,6 +4,7 @@
 import EatPic.spring.domain.user.dto.*;
 import EatPic.spring.domain.user.dto.request.LoginRequestDTO;
 import EatPic.spring.domain.user.dto.request.SignupRequestDTO;
+import EatPic.spring.domain.user.dto.response.CheckEmailResponseDTO;
 import EatPic.spring.domain.user.dto.response.CheckNicknameResponseDTO;
 import EatPic.spring.domain.user.dto.response.LoginResponseDTO;
 import EatPic.spring.domain.user.dto.response.SignupResponseDTO;
@@ -53,9 +54,17 @@ public ApiResponse<UserInfoDTO> getMyInfo(HttpServletRequest request) {
     // 이메일 중복 검사
     @GetMapping("/check-email")
     @Operation(summary = "이메일 중복 검사")
-    public ApiResponse<Map<String, Boolean>> checkEmail(@RequestParam String email) {
+    public ApiResponse<CheckEmailResponseDTO> checkEmail(@RequestParam String email) {
         boolean isDuplicate = userService.isEmailDuplicate(email);
-        return ApiResponse.onSuccess(Map.of("isDuplicate", isDuplicate));
+
+        if(isDuplicate) {
+            return ApiResponse.onFailure(
+                    ErrorStatus.DUPLICATE_EMAIL.getCode(),
+                    ErrorStatus.DUPLICATE_EMAIL.getMessage(),
+                    UserConverter.toCheckEmailResponseDTO(email, false)
+            );
+        }
+        return ApiResponse.onSuccess(UserConverter.toCheckEmailResponseDTO(email, true));
     }
 
     // 유저 아이디 중복 검사
@@ -79,7 +88,6 @@ public ApiResponse<CheckNicknameResponseDTO> checkNickname(@RequestParam String
                     UserConverter.toCheckNicknameResponseDto(nickname, false)
             );
         }
-
         return ApiResponse.onSuccess(UserConverter.toCheckNicknameResponseDto(nickname, true));
     }
 }
diff --git a/src/main/java/EatPic/spring/domain/user/converter/UserConverter.java b/src/main/java/EatPic/spring/domain/user/converter/UserConverter.java
index ace403c..9b024eb 100644
--- a/src/main/java/EatPic/spring/domain/user/converter/UserConverter.java
+++ b/src/main/java/EatPic/spring/domain/user/converter/UserConverter.java
@@ -4,6 +4,7 @@
 import EatPic.spring.domain.reaction.dto.ReactionResponseDTO;
 import EatPic.spring.domain.reaction.entity.ReactionType;
 import EatPic.spring.domain.user.dto.UserInfoDTO;
+import EatPic.spring.domain.user.dto.response.CheckEmailResponseDTO;
 import EatPic.spring.domain.user.dto.response.CheckNicknameResponseDTO;
 import EatPic.spring.domain.user.dto.response.LoginResponseDTO;
 import EatPic.spring.domain.user.dto.response.UserResponseDTO;
@@ -98,6 +99,14 @@ public static UserResponseDTO.UserActionResponseDto toUserActionResponseDto(User
                 .build();
     }
 
+    // 유저 아이디 중복 검사
+    public static CheckEmailResponseDTO toCheckEmailResponseDTO(String email, boolean isDuplicate){
+        return CheckEmailResponseDTO.builder()
+                .email(email)
+                .isDuplicate(isDuplicate)
+                .build();
+    }
+
     // 닉네임 중복 검사
     public static CheckNicknameResponseDTO toCheckNicknameResponseDto(String nickname, boolean isDuplicate) {
         return CheckNicknameResponseDTO.builder()
@@ -105,4 +114,5 @@ public static CheckNicknameResponseDTO toCheckNicknameResponseDto(String nicknam
                 .isDuplicate(isDuplicate)
                 .build();
     }
+
 }
diff --git a/src/main/java/EatPic/spring/domain/user/dto/response/CheckEmailResponseDTO.java b/src/main/java/EatPic/spring/domain/user/dto/response/CheckEmailResponseDTO.java
new file mode 100644
index 0000000..db9b8bc
--- /dev/null
+++ b/src/main/java/EatPic/spring/domain/user/dto/response/CheckEmailResponseDTO.java
@@ -0,0 +1,15 @@
+package EatPic.spring.domain.user.dto.response;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Builder
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+public class CheckEmailResponseDTO {
+    private String email;
+    private boolean isDuplicate;
+}
diff --git a/src/main/java/EatPic/spring/domain/user/dto/response/CheckNicknameResponseDTO.java b/src/main/java/EatPic/spring/domain/user/dto/response/CheckNicknameResponseDTO.java
index c19a4e1..acba8d9 100644
--- a/src/main/java/EatPic/spring/domain/user/dto/response/CheckNicknameResponseDTO.java
+++ b/src/main/java/EatPic/spring/domain/user/dto/response/CheckNicknameResponseDTO.java
@@ -1,6 +1,5 @@
 package EatPic.spring.domain.user.dto.response;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;