diff --git a/backend/src/main/java/io/metersphere/api/service/ApiDefinitionService.java b/backend/src/main/java/io/metersphere/api/service/ApiDefinitionService.java
index 51299f2b62..9c240af323 100644
--- a/backend/src/main/java/io/metersphere/api/service/ApiDefinitionService.java
+++ b/backend/src/main/java/io/metersphere/api/service/ApiDefinitionService.java
@@ -1864,6 +1864,13 @@ public class ApiDefinitionService {
     public void deleteApiDefinitionByVersion(String refId, String version) {
         ApiDefinitionExample example = new ApiDefinitionExample();
         example.createCriteria().andRefIdEqualTo(refId).andVersionIdEqualTo(version);
+        List<ApiDefinition> apiDefinitions = apiDefinitionMapper.selectByExample(example);
+        List<String> ids = apiDefinitions.stream().map(ApiDefinition::getId).collect(Collectors.toList());
+
+        ApiTestCaseExample apiTestCaseExample = new ApiTestCaseExample();
+        apiTestCaseExample.createCriteria().andApiDefinitionIdIn(ids);
+        apiTestCaseMapper.deleteByExample(apiTestCaseExample);
+        //
         apiDefinitionMapper.deleteByExample(example);
     }