diff --git a/backend/src/main/java/com/edufocus/edufocus/qna/controller/QnaController.java b/backend/src/main/java/com/edufocus/edufocus/qna/controller/QnaController.java
index c4c2a0a..6a20a67 100644
--- a/backend/src/main/java/com/edufocus/edufocus/qna/controller/QnaController.java
+++ b/backend/src/main/java/com/edufocus/edufocus/qna/controller/QnaController.java
@@ -49,17 +49,20 @@ public class QnaController {
     public ResponseEntity<QnaResponseDto> createAnswer(@PathVariable("qna_id") Long qna_id, @RequestBody QnaRequestDto qnaRequestDto, HttpServletRequest request) {
         try {
             String token = request.getHeader("Authorization");
+            System.out.println(token);
             Long userId = Long.parseLong(jwtUtil.getUserId(token));
             User findUser = userRepository.findById(userId).orElse(null);
 
             if (findUser.getRole() != UserRole.ADMIN) {
-                throw new RuntimeException();
+                return new ResponseEntity<>(HttpStatus.NOT_ACCEPTABLE);
+
             }
 
             QnaResponseDto responseDto = qnaService.createAnswer(qna_id, qnaRequestDto);
             return new ResponseEntity<>(responseDto, HttpStatus.ACCEPTED);
         } catch (Exception e) {
-            throw new RuntimeException(e);
+            return new ResponseEntity<>(HttpStatus.NOT_ACCEPTABLE);
+
         }
     }
 
@@ -91,12 +94,12 @@ public class QnaController {
 
             System.out.println("delete answer");
             if (findUser.getRole() != UserRole.ADMIN) {
-                throw new RuntimeException();
+                return new ResponseEntity<>(HttpStatus.NOT_ACCEPTABLE);
             }
             qnaService.deleteAnswer(qna_id);
             return new ResponseEntity<>(HttpStatus.ACCEPTED);
         } catch (Exception e) {
-            throw new RuntimeException(e);
+            return new ResponseEntity<>(HttpStatus.NOT_ACCEPTABLE);
         }
     }
 
@@ -110,7 +113,7 @@ public class QnaController {
             return new ResponseEntity<>(qnaResponseDto, HttpStatus.ACCEPTED);
 
         } catch (Exception e) {
-            throw new RuntimeException(e);
+            return new ResponseEntity<>(HttpStatus.NOT_ACCEPTABLE);
         }
     }
 
diff --git a/backend/src/main/java/com/edufocus/edufocus/qna/service/QnaServiceImpl.java b/backend/src/main/java/com/edufocus/edufocus/qna/service/QnaServiceImpl.java
index 3454e27..6180416 100644
--- a/backend/src/main/java/com/edufocus/edufocus/qna/service/QnaServiceImpl.java
+++ b/backend/src/main/java/com/edufocus/edufocus/qna/service/QnaServiceImpl.java
@@ -57,18 +57,15 @@ public class QnaServiceImpl implements QnaService {
 
         System.out.println("userId:" + userId);
 
-        Qna qna = qnaRepository.findById(id).orElse(null);
-        System.out.println("quesiton에 있는거: " + qna.getUser().getId());
+        Qna findQna = qnaRepository.findById(id).orElse(null);
+        System.out.println("quesiton에 있는거: " + findQna.getUser().getId());
         User user = userRepository.findById(userId).orElse(null);
 
-        if (qna.getUser().getId() != userId) {
+        if (findQna.getUser().getId() != userId || user.getRole() != UserRole.STUDENT) {
             throw new RuntimeException();
         }
 
 
-        Qna findQna = qnaRepository.findById(id)
-                .orElseThrow(() -> new RuntimeException("QnA not found"));
-
         findQna.setModifiedAt(new Date());
         findQna.setTitle(qnaRequestDto.getTitle());
         findQna.setContent(qnaRequestDto.getContent());
@@ -129,11 +126,12 @@ public class QnaServiceImpl implements QnaService {
     public QnaResponseDto createAnswer(Long id, QnaRequestDto qnaRequestDto) throws SQLException {
 
         Qna findQna = qnaRepository.findById(id).orElse(null);
-        findQna.setAnswer(qnaRequestDto.getAnswer());
-
         if (findQna.getAnswer() != null) {
             throw new RuntimeException();
         }
+        findQna.setAnswer(qnaRequestDto.getAnswer());
+
+
         qnaRepository.save(findQna);
 
         return QnaResponseDto.toEntity(findQna);