diff --git a/src/main/java/com/mpnp/baechelin/store/controller/UserRegisterStoreController.java b/src/main/java/com/mpnp/baechelin/store/controller/UserRegisterStoreController.java
index c2fc16b..d0f23ee 100644
--- a/src/main/java/com/mpnp/baechelin/store/controller/UserRegisterStoreController.java
+++ b/src/main/java/com/mpnp/baechelin/store/controller/UserRegisterStoreController.java
@@ -12,6 +12,9 @@
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.util.List;
 
 @RestController
 @RequestMapping("/store")
@@ -26,6 +29,17 @@ public ResponseEntity<String> registerStore(
             @ModelAttribute UserRegisterStoreRequestDto userRegisterStoreRequestDto,
             @AuthenticationPrincipal User userDetails) {
 
+        /*
+         * 이미지 파일 리스트 유효성 체크
+         * @Valid 어노테이션은 Collection 에는 적용할 수 없으므로 직접 유효성 체크를 해준다.
+         */
+        List<MultipartFile> userRegisterStoreImageList = userRegisterStoreRequestDto.getUserRegisterStoreImageList();
+        for (MultipartFile multipartFile : userRegisterStoreImageList) {
+            if (multipartFile.isEmpty()) {
+                throw new NullPointerException();
+            }
+        }
+
         userRegisterStoreService.registerStore(userRegisterStoreRequestDto, userDetails.getUsername());
         return new ResponseEntity<>("업장 등록 성공", HttpStatus.OK);
     }
diff --git a/src/main/java/com/mpnp/baechelin/store/dto/userRegisterStore/UserRegisterStoreImgDto.java b/src/main/java/com/mpnp/baechelin/store/dto/userRegisterStore/UserRegisterStoreImgDto.java
index ffd2da6..bf6a594 100644
--- a/src/main/java/com/mpnp/baechelin/store/dto/userRegisterStore/UserRegisterStoreImgDto.java
+++ b/src/main/java/com/mpnp/baechelin/store/dto/userRegisterStore/UserRegisterStoreImgDto.java
@@ -13,8 +13,4 @@ public class UserRegisterStoreImgDto {
     public UserRegisterStoreImgDto(String userRegisterStoreImageUrl) {
         this.userRegisterStoreImageUrl = userRegisterStoreImageUrl;
     }
-
-    public UserRegisterStoreImgDto(UserRegisterStoreImg userRegisterStoreImg) {
-        this.userRegisterStoreImageUrl = userRegisterStoreImg.getUserRegisterStoreImageUrl();
-    }
 }
diff --git a/src/main/java/com/mpnp/baechelin/store/service/UserRegisterStoreService.java b/src/main/java/com/mpnp/baechelin/store/service/UserRegisterStoreService.java
index 821b5ef..b04341e 100644
--- a/src/main/java/com/mpnp/baechelin/store/service/UserRegisterStoreService.java
+++ b/src/main/java/com/mpnp/baechelin/store/service/UserRegisterStoreService.java
@@ -10,6 +10,7 @@
 import com.mpnp.baechelin.util.AwsS3Manager;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
 
 import javax.transaction.Transactional;
 import java.util.ArrayList;
@@ -29,6 +30,7 @@ public class UserRegisterStoreService {
     /**
      * 유저 업장 등록
      * @param userRegisterStoreRequestDto
+     * @param socialId
      */
     public void registerStore(UserRegisterStoreRequestDto userRegisterStoreRequestDto, String socialId) {
         User user = userRepository.findBySocialId(socialId);
@@ -45,21 +47,22 @@ public void registerStore(UserRegisterStoreRequestDto userRegisterStoreRequestDt
                 .build();
 
         // 업장의 이미지 여러개 등록
-        // s3에 이미지 업로드 후 url 반환
-        List<String> uploadedImage = awsS3Manager.uploadFile(userRegisterStoreRequestDto.getUserRegisterStoreImageList());
-
         // saveAll을 위해 userRegisterStoreImg List에 저장
         List<UserRegisterStoreImg> userRegisterStoreImgList = new ArrayList<>();
 
-        for (String image : uploadedImage) {
+        // 유저가 등록한 업장 이미지 리스트
+        List<MultipartFile> userRegisterStoreImageFiles = userRegisterStoreRequestDto.getUserRegisterStoreImageList();
+
+        for (MultipartFile userRegisterStoreImageFile : userRegisterStoreImageFiles) {
             UserRegisterStoreImg userRegisterStoreImg = UserRegisterStoreImg.builder()
-                    .userRegisterStoreImageUrl(image)
+                    .userRegisterStoreImageUrl(awsS3Manager.uploadFile(userRegisterStoreImageFile)) // 유저가 등록한 업장 이미지 url 변환
                     .userRegisterStore(userRegisterStore)
                     .build();
 
             userRegisterStoreImgList.add(userRegisterStoreImg);
         }
 
+
         userRegisterStoreRepository.save(userRegisterStore);
         userRegisterStoreImgRepository.saveAll(userRegisterStoreImgList);
     }
diff --git a/src/main/java/com/mpnp/baechelin/util/AwsS3Manager.java b/src/main/java/com/mpnp/baechelin/util/AwsS3Manager.java
index 392d334..34c1d7e 100644
--- a/src/main/java/com/mpnp/baechelin/util/AwsS3Manager.java
+++ b/src/main/java/com/mpnp/baechelin/util/AwsS3Manager.java
@@ -29,36 +29,6 @@ public class AwsS3Manager {
 
     private final AmazonS3 amazonS3;
 
-
-    // 이미지 여러장 저장
-    public List<String> uploadFile(List<MultipartFile> multipartFile) {
-        List<String> fileNameList = new ArrayList<>();
-
-        // 파일이 넘어오지 않으면 빈 리스트 반환
-        if (multipartFile == null) {
-            return fileNameList;
-        }
-
-        // forEach 구문을 통해 multipartFile로 넘어온 파일들 하나씩 fileNameList에 추가
-        multipartFile.forEach(file -> {
-            String fileName = createFileName(file.getOriginalFilename());
-            ObjectMetadata objectMetadata = new ObjectMetadata();
-            objectMetadata.setContentLength(file.getSize());
-            objectMetadata.setContentType(file.getContentType());
-
-            try(InputStream inputStream = file.getInputStream()) {
-                amazonS3.putObject(new PutObjectRequest(bucket, fileName, inputStream, objectMetadata)
-                        .withCannedAcl(CannedAccessControlList.PublicRead));
-            } catch(IOException e) {
-                throw new ResponseStatusException(HttpStatus.INTERNAL_SERVER_ERROR, "파일 업로드에 실패했습니다.");
-            }
-
-            fileNameList.add(String.format("https://%s.s3.amazonaws.com/%s", bucket, fileName));
-        });
-
-        return fileNameList;
-    }
-
     // 이미지 단건 저장
     public String uploadFile(MultipartFile file) {
         if (Objects.equals(file.getOriginalFilename(), "")) {