diff --git a/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/controller/PreviewController.java b/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/controller/PreviewController.java
index d389cff8..e8358d84 100644
--- a/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/controller/PreviewController.java
+++ b/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/controller/PreviewController.java
@@ -11,12 +11,11 @@
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
-import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 @Controller
-@RequestMapping("/api/v1/lottery/drawing")
 @RequiredArgsConstructor
 public class PreviewController {
 
@@ -40,18 +39,18 @@ public class PreviewController {
             @ApiResponse(responseCode = "200", description = "html 렌더링 성공 시", useReturnTypeSchema = true),
             @ApiResponse(responseCode = "400", description = "이벤트를 참여하지 않은 sharedUrl이 들어올 경우", useReturnTypeSchema = true)
     })
-    @GetMapping("/preview")
+    @GetMapping("/{sharedUrl}")
     public String preview(
-            @Validated PreviewRequest previewRequest,
+            @PathVariable String sharedUrl,
             Model model
     ) {
-        EventUser eventUser = previewService.preview(previewRequest, model);
+        EventUser eventUser = previewService.preview(sharedUrl, model);
 
         model.addAttribute("resultImgUrl", eventUser.getResultImgUrl());
         model.addAttribute("name", eventUser.getUser().getName());
         model.addAttribute("apiUrl", baseUrl + "/api/v1");
-        model.addAttribute("ogUrl", baseUrl + "/api/v1/lottery/drawing/preview?sharedUrl=" + previewRequest.getSharedUrl());
-        model.addAttribute("sharedUrl", previewRequest.getSharedUrl());
+        model.addAttribute("ogUrl", baseUrl + "/" + sharedUrl);
+        model.addAttribute("sharedUrl", sharedUrl);
 
         return "preview";
     }
diff --git a/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/DrawingLotteryService.java b/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/DrawingLotteryService.java
index f892b2ff..52800758 100644
--- a/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/DrawingLotteryService.java
+++ b/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/DrawingLotteryService.java
@@ -57,6 +57,7 @@ public class DrawingLotteryService implements LotteryService {
     private final Random random = new Random();
 
     public static final int RANK_COUNT = 20;
+    public static final String BUCKET_DIR = "preview/";
 
     @Value("${properties.event-id}")
     private Long eventId;
@@ -237,18 +238,24 @@ public void saveDrawImage(MultipartFile file, Long eventId, User authenticatedUs
         EventUser eventUser = eventUserRepository.findByUserIdAndSubEventId(authenticatedUser.getId(), subEvent.getId())
                 .orElseThrow(() -> new EventUserNotFoundException());
 
+        String resultImgUrl = eventUser.getResultImgUrl();
+
+        if(resultImgUrl != null) {
+            amazonS3Client.deleteObject(bucket, BUCKET_DIR + resultImgUrl);
+        }
+
         String fileName = createFileName(file.getOriginalFilename());
         ObjectMetadata metadata = new ObjectMetadata();
         metadata.setContentLength(file.getSize());
         metadata.setContentType(file.getContentType());
 
         try {
-            amazonS3Client.putObject(bucket, fileName, file.getInputStream(), metadata);
+            amazonS3Client.putObject(bucket, BUCKET_DIR + fileName, file.getInputStream(), metadata);
         } catch (IOException e) {
             throw new RuntimeException(e);
         }
 
-        String fileUrl = amazonS3Client.getUrl(bucket, fileName).toString();
+        String fileUrl = amazonS3Client.getUrl(bucket, BUCKET_DIR + fileName).toString();
 
         eventUser.setResultImgUrl(fileUrl);
     }
diff --git a/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/PreviewService.java b/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/PreviewService.java
index ca543e7f..be5f9bd6 100644
--- a/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/PreviewService.java
+++ b/src/main/java/com/hyundai/softeer/backend/domain/lottery/drawing/service/PreviewService.java
@@ -15,9 +15,7 @@ public class PreviewService {
 
     private final EventUserRepository eventUserRepository;
 
-    public EventUser preview(PreviewRequest previewRequest, Model model) {
-        String sharedUrl = previewRequest.getSharedUrl();
-
+    public EventUser preview(String sharedUrl, Model model) {
         EventUser eventUser = eventUserRepository.findBySharedUrl(sharedUrl)
                 .orElseThrow(() -> new EventUserNotFoundException());