diff --git a/src/main/java/yapp/allround3/feedback/repository/FeedbackRepository.java b/src/main/java/yapp/allround3/feedback/repository/FeedbackRepository.java
index 08f82b8..90ee165 100644
--- a/src/main/java/yapp/allround3/feedback/repository/FeedbackRepository.java
+++ b/src/main/java/yapp/allround3/feedback/repository/FeedbackRepository.java
@@ -4,11 +4,15 @@
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
 import yapp.allround3.feedback.domain.Feedback;
+import yapp.allround3.participant.domain.Participant;
 import yapp.allround3.task.domain.Task;
 
 import java.util.List;
+import java.util.Optional;
 
 @Repository
 public interface FeedbackRepository extends JpaRepository<Feedback,Long> {
 	List<Feedback> findByTask(Task task);
+
+	Optional<Feedback> findByTaskAndParticipant(Task task, Participant participant);
 }
diff --git a/src/main/java/yapp/allround3/feedback/service/FeedbackService.java b/src/main/java/yapp/allround3/feedback/service/FeedbackService.java
index 88f4e82..b0dfdeb 100644
--- a/src/main/java/yapp/allround3/feedback/service/FeedbackService.java
+++ b/src/main/java/yapp/allround3/feedback/service/FeedbackService.java
@@ -47,6 +47,11 @@ public void saveFeedback(FeedbackRequest feedbackRequest) {
 			throw new CustomException("자신의 업무는 피드백 할 수 없습니다.");
 		}
 
+		if (existFeedbackHistory(task, participant)) {
+			throw new CustomException("이미 피드백을 제출하였습니다.");
+		}
+
+
 		List<Integer> checklist = feedbackRequest.getChecklist();
 
 		for (Integer templateId : checklist) {
@@ -77,4 +82,9 @@ public CustomResponse<FeedbackResponse> findFeedbacks(Long taskId) {
 
 		return CustomResponse.success(result);
 	}
+
+	private boolean existFeedbackHistory(Task task, Participant participant) {
+		return feedbackRepository.findByTaskAndParticipant(task, participant)
+			.isPresent();
+	}
 }