diff --git a/src/main/java/com/m9d/sroom/common/error/DuplicationException.java b/src/main/java/com/m9d/sroom/common/error/DuplicationException.java
index d50591aa..3ea57b25 100644
--- a/src/main/java/com/m9d/sroom/common/error/DuplicationException.java
+++ b/src/main/java/com/m9d/sroom/common/error/DuplicationException.java
@@ -6,7 +6,7 @@
 @Getter
 public abstract class DuplicationException extends RuntimeException {
 
-    private final int statusCode = HttpStatus.NOT_FOUND.value();
+    private final int statusCode = HttpStatus.BAD_REQUEST.value();
     private String message;
 
     public DuplicationException(String message) {
diff --git a/src/main/java/com/m9d/sroom/common/error/NotMatchException.java b/src/main/java/com/m9d/sroom/common/error/NotMatchException.java
index 372bf200..88793788 100644
--- a/src/main/java/com/m9d/sroom/common/error/NotMatchException.java
+++ b/src/main/java/com/m9d/sroom/common/error/NotMatchException.java
@@ -7,7 +7,7 @@
 @Getter
 public abstract class NotMatchException extends RuntimeException {
 
-    private final int statusCode = HttpStatus.NOT_FOUND.value();
+    private final int statusCode = HttpStatus.BAD_REQUEST.value();
     private String message;
 
     public NotMatchException(String message) {
diff --git a/src/main/java/com/m9d/sroom/material/FeedbackService.java b/src/main/java/com/m9d/sroom/material/FeedbackService.java
index c9ef9846..2bb166be 100644
--- a/src/main/java/com/m9d/sroom/material/FeedbackService.java
+++ b/src/main/java/com/m9d/sroom/material/FeedbackService.java
@@ -1,12 +1,12 @@
 package com.m9d.sroom.material;
 
 import com.m9d.sroom.common.entity.MaterialFeedbackEntity;
-import com.m9d.sroom.common.entity.QuizEntity;
-import com.m9d.sroom.common.entity.SummaryEntity;
 import com.m9d.sroom.common.repository.materialfeedback.MaterialFeedbackRepository;
 import com.m9d.sroom.common.repository.quiz.QuizRepository;
 import com.m9d.sroom.common.repository.summary.SummaryRepository;
 import com.m9d.sroom.material.dto.response.FeedbackInfo;
+import com.m9d.sroom.material.exception.FeedbackUnavailableException;
+import com.m9d.sroom.material.exception.MaterialFeedbackDuplicateException;
 import com.m9d.sroom.material.exception.QuizNotFoundException;
 import com.m9d.sroom.material.exception.SummaryNotFoundException;
 import com.m9d.sroom.material.model.MaterialType;
@@ -34,15 +34,17 @@ public FeedbackInfo feedback(Long memberId, MaterialType materialType, Long mate
                                  boolean satisfactory) {
         FeedbackInfo feedbackInfo = getFeedbackInfo(memberId, materialType, materialId);
 
-        if (feedbackInfo.isHasFeedback() || !available) {
-            feedbackInfo.setAvailable(false);
-            return feedbackInfo;
+        if (feedbackInfo.isHasFeedback()) {
+            throw new MaterialFeedbackDuplicateException();
+        } else if (!available) {
+            throw new FeedbackUnavailableException();
         } else {
             MaterialFeedbackEntity feedbackEntity = feedbackRepository.save(
                     MaterialFeedbackEntity.createForSave(memberId, materialType, materialId, satisfactory));
             updateFeedbackCount(materialType, materialId, satisfactory);
             return FeedbackInfo.createSubmittedInfo(feedbackEntity);
         }
+
     }
 
     public FeedbackInfo getFeedbackInfo(Long memberId, MaterialType materialType, Long materialId) {
diff --git a/src/main/java/com/m9d/sroom/material/exception/FeedbackUnavailableException.java b/src/main/java/com/m9d/sroom/material/exception/FeedbackUnavailableException.java
new file mode 100644
index 00000000..be209bdb
--- /dev/null
+++ b/src/main/java/com/m9d/sroom/material/exception/FeedbackUnavailableException.java
@@ -0,0 +1,12 @@
+package com.m9d.sroom.material.exception;
+
+import com.m9d.sroom.common.error.NotMatchException;
+
+public class FeedbackUnavailableException extends NotMatchException {
+
+    private static final String MESSAGE = "수정된 요약본은 사용자 피드백이 불가합니다.";
+
+    public FeedbackUnavailableException() {
+        super(MESSAGE);
+    }
+}
diff --git a/src/main/java/com/m9d/sroom/material/exception/MaterialFeedbackDuplicateException.java b/src/main/java/com/m9d/sroom/material/exception/MaterialFeedbackDuplicateException.java
new file mode 100644
index 00000000..5373ae0f
--- /dev/null
+++ b/src/main/java/com/m9d/sroom/material/exception/MaterialFeedbackDuplicateException.java
@@ -0,0 +1,12 @@
+package com.m9d.sroom.material.exception;
+
+import com.m9d.sroom.common.error.DuplicationException;
+
+public class MaterialFeedbackDuplicateException extends DuplicationException {
+
+    private static final String MESSAGE = "이미 피드백된 강의자료입니다.";
+
+    public MaterialFeedbackDuplicateException() {
+        super(MESSAGE);
+    }
+}