diff --git a/backend/services/api-test/src/main/java/io/metersphere/api/service/definition/ApiTestCaseService.java b/backend/services/api-test/src/main/java/io/metersphere/api/service/definition/ApiTestCaseService.java
index ff2650123b..997bae286c 100644
--- a/backend/services/api-test/src/main/java/io/metersphere/api/service/definition/ApiTestCaseService.java
+++ b/backend/services/api-test/src/main/java/io/metersphere/api/service/definition/ApiTestCaseService.java
@@ -1,6 +1,5 @@
 package io.metersphere.api.service.definition;
 
-import io.metersphere.sdk.constants.ApiFileResourceType;
 import io.metersphere.api.constants.ApiResourceType;
 import io.metersphere.api.domain.*;
 import io.metersphere.api.dto.*;
@@ -13,6 +12,8 @@ import io.metersphere.api.service.ApiCommonService;
 import io.metersphere.api.service.ApiExecuteService;
 import io.metersphere.api.service.ApiFileResourceService;
 import io.metersphere.api.utils.ApiDataUtils;
+import io.metersphere.functional.domain.FunctionalCaseTestExample;
+import io.metersphere.functional.mapper.FunctionalCaseTestMapper;
 import io.metersphere.plugin.api.spi.AbstractMsTestElement;
 import io.metersphere.project.domain.FileAssociation;
 import io.metersphere.project.domain.FileMetadata;
@@ -104,6 +105,8 @@ public class ApiTestCaseService extends MoveNodeService {
     private ApiTestCaseNoticeService apiTestCaseNoticeService;
     @Resource
     private ExtApiReportMapper extApiReportMapper;
+    @Resource
+    private FunctionalCaseTestMapper functionalCaseTestMapper;
 
     private static final String CASE_TABLE = "api_test_case";
     private static final int MAX_TAG_SIZE = 10;
@@ -380,7 +383,7 @@ public class ApiTestCaseService extends MoveNodeService {
         if (CollectionUtils.isEmpty(ids)) {
             return;
         }
-        SubListUtils.dealForSubList(ids, 2000, subList -> deleteResourceByIds(subList, request.getProjectId(), userId));
+        SubListUtils.dealForSubList(ids, 200, subList -> deleteResourceByIds(subList, request.getProjectId(), userId));
     }
 
     public void deleteResourceByIds(List<String> ids, String projectId, String userId) {
@@ -400,6 +403,10 @@ public class ApiTestCaseService extends MoveNodeService {
         //记录删除日志
         apiTestCaseLogService.deleteBatchLog(caseLists, userId, projectId);
         //TODO 需要删除测试计划与用例的中间表 功能用例的关联表等
+        FunctionalCaseTestExample functionalCaseTestExample = new FunctionalCaseTestExample();
+        functionalCaseTestExample.createCriteria().andSourceIdIn(ids).andSourceTypeEqualTo("API");
+        functionalCaseTestMapper.deleteByExample(functionalCaseTestExample);
+
         //TODO 删除附件关系    不需要删除报告
         //extFileAssociationService.deleteByResourceIds(ids);
     }
@@ -836,6 +843,7 @@ public class ApiTestCaseService extends MoveNodeService {
 
     /**
      * 校验TAG长度
+     *
      * @param tags 标签集合
      */
     public void checkTagLength(List<String> tags) {
diff --git a/backend/services/api-test/src/main/java/io/metersphere/api/service/scenario/ApiScenarioService.java b/backend/services/api-test/src/main/java/io/metersphere/api/service/scenario/ApiScenarioService.java
index de11b8c62e..cacf1229cf 100644
--- a/backend/services/api-test/src/main/java/io/metersphere/api/service/scenario/ApiScenarioService.java
+++ b/backend/services/api-test/src/main/java/io/metersphere/api/service/scenario/ApiScenarioService.java
@@ -27,6 +27,8 @@ import io.metersphere.api.service.definition.ApiDefinitionService;
 import io.metersphere.api.service.definition.ApiTestCaseService;
 import io.metersphere.api.utils.ApiDataUtils;
 import io.metersphere.api.utils.ApiScenarioBatchOperationUtils;
+import io.metersphere.functional.domain.FunctionalCaseTestExample;
+import io.metersphere.functional.mapper.FunctionalCaseTestMapper;
 import io.metersphere.plugin.api.spi.AbstractMsTestElement;
 import io.metersphere.project.api.processor.MsProcessor;
 import io.metersphere.project.api.processor.TimeWaitingProcessor;
@@ -41,7 +43,9 @@ import io.metersphere.project.dto.environment.http.HttpConfigModuleMatchRule;
 import io.metersphere.project.dto.environment.http.SelectModule;
 import io.metersphere.project.mapper.ExtBaseProjectVersionMapper;
 import io.metersphere.project.mapper.ProjectMapper;
-import io.metersphere.project.service.*;
+import io.metersphere.project.service.EnvironmentGroupService;
+import io.metersphere.project.service.EnvironmentService;
+import io.metersphere.project.service.MoveNodeService;
 import io.metersphere.sdk.constants.*;
 import io.metersphere.sdk.domain.Environment;
 import io.metersphere.sdk.domain.EnvironmentExample;
@@ -188,12 +192,15 @@ public class ApiScenarioService extends MoveNodeService {
     private ApiScenarioNoticeService apiScenarioNoticeService;
     @Resource
     private ExtApiScenarioReportMapper extApiScenarioReportMapper;
+    @Resource
+    private FunctionalCaseTestMapper functionalCaseTestMapper;
 
     public static final String PRIORITY = "Priority";
     public static final String STATUS = "Status";
     public static final String TAGS = "Tags";
     public static final String ENVIRONMENT = "Environment";
     private static final String SCENARIO_TABLE = "api_scenario";
+    private static final String SCENARIO = "SCENARIO";
 
 
     public List<ApiScenarioDTO> getScenarioPage(ApiScenarioPageRequest request) {
@@ -454,6 +461,7 @@ public class ApiScenarioService extends MoveNodeService {
 
     /**
      * 处理复制场景时的文件复制
+     *
      * @param request
      * @param scenario
      */
@@ -1187,6 +1195,12 @@ public class ApiScenarioService extends MoveNodeService {
 
         //删除定时任务
         scheduleService.deleteByResourceId(scenario.getId(), ApiScenarioScheduleJob.class.getName());
+
+        //删除功能用例关联关系
+        FunctionalCaseTestExample functionalCaseTestExample = new FunctionalCaseTestExample();
+        functionalCaseTestExample.createCriteria().andSourceIdEqualTo(scenario.getId()).andSourceTypeEqualTo(SCENARIO);
+        functionalCaseTestMapper.deleteByExample(functionalCaseTestExample);
+
     }
 
     private void deleteCsvByScenarioId(String id) {
@@ -1237,6 +1251,11 @@ public class ApiScenarioService extends MoveNodeService {
         }
         apiScenarioCsvMapper.deleteByExample(csvExample);
 
+        //删除功能用例关联关系
+        FunctionalCaseTestExample functionalCaseTestExample = new FunctionalCaseTestExample();
+        functionalCaseTestExample.createCriteria().andSourceIdIn(scenarioIdList).andSourceTypeEqualTo(SCENARIO);
+        functionalCaseTestMapper.deleteByExample(functionalCaseTestExample);
+
     }