diff --git a/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java b/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java
index 07e431e..3d5fe95 100644
--- a/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java
+++ b/web-app/src/main/java/com/zcloud/edu/command/study/ClassExamPaperAddExe.java
@@ -13,6 +13,7 @@ import com.zcloud.edu.dto.study.ClassExamPaperAddCmd;
 import com.zcloud.edu.dto.study.ClassExamPaperAutoAddCmd;
 import com.zcloud.edu.persistence.dataobject.QuestionDO;
 import com.zcloud.edu.persistence.repository.resource.QuestionRepository;
+import com.zcloud.edu.persistence.repository.study.ClassExamPaperRepository;
 import lombok.AllArgsConstructor;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Component;
@@ -36,9 +37,16 @@ public class ClassExamPaperAddExe {
     private final ClassExamPaperGateway classExamPaperGateway;
     private final ExamPaperGateway examPaperGateway;
     private final QuestionRepository questionRepository;
+    private final ClassExamPaperRepository classExamPaperRepository;
 
     @Transactional(rollbackFor = Exception.class)
     public boolean execute(ClassExamPaperAddCmd cmd) {
+        Long count = classExamPaperRepository.countByClassId(cmd.getClassId());
+        if (count > 0) {
+            throw new BizException("该班级已存在试卷");
+        }
+
+
         ClassExamPaperE classExamPaperE = new ClassExamPaperE();
         BeanUtils.copyProperties(cmd, classExamPaperE);
         // 初始化字段，并判断题目分数是否符合要求
@@ -58,6 +66,12 @@ public class ClassExamPaperAddExe {
 
     @Transactional(rollbackFor = Exception.class)
     public boolean executeAutoSave(ClassExamPaperAutoAddCmd cmd) {
+
+        Long count = classExamPaperRepository.countByClassId(cmd.getClassId());
+        if (count > 0) {
+            throw new BizException("该班级已存在试卷");
+        }
+
         ClassExamPaperE classExamPaperE = new ClassExamPaperE();
         BeanUtils.copyProperties(cmd, classExamPaperE);
         // 初始化字段，并判断题目分数是否符合要求