diff --git a/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/controller/MyDemandProjectController.java b/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/controller/MyDemandProjectController.java
index 8cfd5f9..1b3cb91 100644
--- a/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/controller/MyDemandProjectController.java
+++ b/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/controller/MyDemandProjectController.java
@@ -32,8 +32,8 @@ public ResponseEntity updateMyDemandFormStatus(@PathVariable Long demand_project
     }
 
     @GetMapping("/detail/{demand_project_id}")
-    public MyDemandDetailResponseDto getMyDemandDetailForm(@PathVariable Long demand_project_id){
-        return myDemandProjectService.findMyDemandFormDetail(demand_project_id);
+    public MyDemandDetailResponseDto getMyDemandDetailForm(@PathVariable Long demand_project_id, @AuthenticationPrincipal User user){
+        return myDemandProjectService.findMyDemandFormDetail(demand_project_id, user);
     }
 
 
diff --git a/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/service/MyDemandProjectService.java b/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/service/MyDemandProjectService.java
index 19c520c..d5bfaf7 100644
--- a/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/service/MyDemandProjectService.java
+++ b/src/main/java/wowmarket/wow_server/mypage/myproject/MyDemandProject/service/MyDemandProjectService.java
@@ -50,8 +50,10 @@ public ResponseEntity updateMyDemandFormStatus(Long demand_project_id){
     }
 
     @Transactional(readOnly = true)
-    public MyDemandDetailResponseDto findMyDemandFormDetail(Long demand_project_id){
+    public MyDemandDetailResponseDto findMyDemandFormDetail(Long demand_project_id, User user){
         DemandProject project = demandProjectRepository.findById(demand_project_id).get();
+        if (user == null || project.getUser().getId() != user.getId())
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST);
         List<DemandItem> demandItems = demandItemRepository.findDemandItemByDemandProject_Id(demand_project_id);
         List<MyDemandItemDto> itemList = demandItems.stream().map(MyDemandItemDto::new).collect(Collectors.toList());
         MyDemandDetailResponseDto responseDto = new MyDemandDetailResponseDto(itemList, project);