diff --git a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.java b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.java
index fa3099b94f..8990ca9b8c 100644
--- a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.java
+++ b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.java
@@ -15,4 +15,6 @@ public interface ExtTestPlanApiCaseMapper {
     List<String> getExecResultByPlanId(String planId);
 
     List<String> getIdsByPlanId(String planId);
+
+    List<String> getNotRelevanceCaseIds(@Param("planId")String planId, @Param("relevanceProjectIds")List<String> relevanceProjectIds);
 }
\ No newline at end of file
diff --git a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.xml b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.xml
index acbbbb07c3..29c947bb9c 100644
--- a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.xml
+++ b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanApiCaseMapper.xml
@@ -90,17 +90,31 @@
       </foreach>
     </if>
   </select>
-    <select id="getExecResultByPlanId" resultType="java.lang.String">
-      select status
-      from
-      test_plan_api_case
-      where test_plan_id = #{planId}
-    </select>
+  <select id="getExecResultByPlanId" resultType="java.lang.String">
+    select status
+    from
+    test_plan_api_case
+    where test_plan_id = #{planId}
+  </select>
 
-    <select id="getIdsByPlanId" resultType="java.lang.String">
-      select id from
-      from test_plan_api_case
-      where id = #{planId}
-    </select>
+  <select id="getIdsByPlanId" resultType="java.lang.String">
+    select id
+    from test_plan_api_case
+    where id = #{planId}
+  </select>
+
+  <select id="getNotRelevanceCaseIds" resultType="java.lang.String">
+    select t.id
+    from test_plan_api_case t
+    inner join api_test_case c
+      on c.id = t.api_case_id
+      <if test="relevanceProjectIds != null and relevanceProjectIds.size() > 0">
+        and c.project_id not in
+        <foreach collection="relevanceProjectIds" item="projectId" separator="," open="(" close=")">
+          #{projectId}
+        </foreach>
+      </if>
+    where t.test_plan_id = #{planId}
+  </select>
 
 </mapper>
\ No newline at end of file
diff --git a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.java b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.java
index c60c731415..483dc83f09 100644
--- a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.java
+++ b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.java
@@ -21,4 +21,6 @@ public interface ExtTestPlanScenarioCaseMapper {
     List<String> getExecResultByPlanId(String planId);
 
     List<String> getIdsByPlanId(String planId);
+
+    List<String> getNotRelevanceCaseIds(String planId, List<String> relevanceProjectIds);
 }
\ No newline at end of file
diff --git a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.xml b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.xml
index 11767c5e7f..d3add4c1a2 100644
--- a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.xml
+++ b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanScenarioCaseMapper.xml
@@ -92,4 +92,18 @@
       where test_plan_id = #{planId}
     </select>
 
+    <select id="getNotRelevanceCaseIds" resultType="java.lang.String">
+      select t.id
+      from test_plan_api_scenario t
+      inner join api_scenario c
+      on c.id = t.api_scenario_id
+      <if test="relevanceProjectIds != null and relevanceProjectIds.size() > 0">
+        and c.project_id not in
+        <foreach collection="relevanceProjectIds" item="projectId" separator="," open="(" close=")">
+          #{projectId}
+        </foreach>
+      </if>
+      where t.test_plan_id = #{planId}
+    </select>
+
 </mapper>
\ No newline at end of file
diff --git a/backend/src/main/java/io/metersphere/track/service/TestPlanApiCaseService.java b/backend/src/main/java/io/metersphere/track/service/TestPlanApiCaseService.java
index 95eec7639d..fd83651fcf 100644
--- a/backend/src/main/java/io/metersphere/track/service/TestPlanApiCaseService.java
+++ b/backend/src/main/java/io/metersphere/track/service/TestPlanApiCaseService.java
@@ -77,6 +77,9 @@ public class TestPlanApiCaseService {
     }
 
     public void deleteApiCaseBath(TestPlanApiCaseBatchRequest request) {
+        if (CollectionUtils.isEmpty(request.getIds())) {
+            return;
+        }
         apiDefinitionExecResultService.deleteByResourceIds(request.getIds());
         TestPlanApiCaseExample example = new TestPlanApiCaseExample();
         example.createCriteria()
@@ -97,4 +100,11 @@ public class TestPlanApiCaseService {
         apiCase.setStatus(status);
         testPlanApiCaseMapper.updateByPrimaryKeySelective(apiCase);
     }
+
+    public void deleteByRelevanceProjectIds(String planId, List<String> relevanceProjectIds) {
+        TestPlanApiCaseBatchRequest request = new TestPlanApiCaseBatchRequest();
+        request.setPlanId(planId);
+        request.setIds(extTestPlanApiCaseMapper.getNotRelevanceCaseIds(planId, relevanceProjectIds));
+        deleteApiCaseBath(request);
+    }
 }
diff --git a/backend/src/main/java/io/metersphere/track/service/TestPlanScenarioCaseService.java b/backend/src/main/java/io/metersphere/track/service/TestPlanScenarioCaseService.java
index cee39a7677..683fe4cee1 100644
--- a/backend/src/main/java/io/metersphere/track/service/TestPlanScenarioCaseService.java
+++ b/backend/src/main/java/io/metersphere/track/service/TestPlanScenarioCaseService.java
@@ -73,6 +73,9 @@ public class TestPlanScenarioCaseService {
     }
 
     public void deleteApiCaseBath(TestPlanApiCaseBatchRequest request) {
+        if (CollectionUtils.isEmpty(request.getIds())) {
+            return;
+        }
         TestPlanApiScenarioExample example = new TestPlanApiScenarioExample();
         example.createCriteria()
                 .andIdIn(request.getIds());
@@ -110,4 +113,11 @@ public class TestPlanScenarioCaseService {
         request.setIds(ids);
         deleteApiCaseBath(request);
     }
+
+    public void deleteByRelevanceProjectIds(String planId, List<String> relevanceProjectIds) {
+        TestPlanApiCaseBatchRequest request = new TestPlanApiCaseBatchRequest();
+        request.setIds(extTestPlanScenarioCaseMapper.getNotRelevanceCaseIds(planId, relevanceProjectIds));
+        request.setPlanId(planId);
+        deleteApiCaseBath(request);
+    }
 }
diff --git a/backend/src/main/java/io/metersphere/track/service/TestPlanService.java b/backend/src/main/java/io/metersphere/track/service/TestPlanService.java
index 72a403bc9b..d3d1959f1b 100644
--- a/backend/src/main/java/io/metersphere/track/service/TestPlanService.java
+++ b/backend/src/main/java/io/metersphere/track/service/TestPlanService.java
@@ -10,7 +10,6 @@ import io.metersphere.api.dto.definition.ApiTestCaseRequest;
 import io.metersphere.api.dto.definition.TestPlanApiCaseDTO;
 import io.metersphere.base.domain.*;
 import io.metersphere.base.mapper.*;
-import io.metersphere.base.mapper.ext.ExtProjectMapper;
 import io.metersphere.base.mapper.ext.ExtTestCaseMapper;
 import io.metersphere.base.mapper.ext.ExtTestPlanMapper;
 import io.metersphere.base.mapper.ext.ExtTestPlanTestCaseMapper;
@@ -27,7 +26,6 @@ import io.metersphere.notice.service.NoticeSendService;
 import io.metersphere.service.SystemParameterService;
 import io.metersphere.track.Factory.ReportComponentFactory;
 import io.metersphere.track.domain.ReportComponent;
-
 import io.metersphere.track.dto.TestCaseReportMetricDTO;
 import io.metersphere.track.dto.TestPlanCaseDTO;
 import io.metersphere.track.dto.TestPlanDTO;
@@ -69,8 +67,6 @@ public class TestPlanService {
     @Resource
     TestPlanTestCaseService testPlanTestCaseService;
     @Resource
-    ExtProjectMapper extProjectMapper;
-    @Resource
     TestCaseReportMapper testCaseReportMapper;
     @Resource
     TestPlanProjectMapper testPlanProjectMapper;
@@ -229,6 +225,14 @@ public class TestPlanService {
                 criteria.andCaseIdNotIn(caseIds);
             }
             testPlanTestCaseMapper.deleteByExample(testPlanTestCaseExample);
+
+            List<String> relevanceProjectIds = new ArrayList<>();
+            relevanceProjectIds.add(testPlan.getProjectId());
+            if (!CollectionUtils.isEmpty(testPlan.getProjectIds())) {
+                relevanceProjectIds.addAll(testPlan.getProjectIds());
+            }
+            testPlanApiCaseService.deleteByRelevanceProjectIds(testPlan.getId(), relevanceProjectIds);
+            testPlanScenarioCaseService.deleteByRelevanceProjectIds(testPlan.getId(), relevanceProjectIds);
         }
     }