diff --git a/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.java b/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.java
index f2b752a8d7..27191eda7e 100644
--- a/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.java
+++ b/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.java
@@ -108,5 +108,5 @@ public interface ExtApiTestCaseMapper {
 
     List<ApiTestCase> getListBySelectIds(@Param("projectId") String projectId, @Param("ids") List<String> ids, @Param("testPlanId") String testPlanId, @Param("protocols") List<String> protocols);
 
-    List<ApiTestCase> getCaseListBySelectIds(@Param("projectId") String projectId, @Param("ids") List<String> ids, @Param("testPlanId") String testPlanId, @Param("protocols") List<String> protocols);
+    List<ApiTestCase> getCaseListBySelectIds(@Param("isRepeat") boolean isRepeat, @Param("projectId") String projectId, @Param("ids") List<String> ids, @Param("testPlanId") String testPlanId, @Param("protocols") List<String> protocols);
 }
\ No newline at end of file
diff --git a/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.xml b/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.xml
index baec5ee9f1..e5c2c1ef7a 100644
--- a/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.xml
+++ b/backend/services/api-test/src/main/java/io/metersphere/api/mapper/ExtApiTestCaseMapper.xml
@@ -712,6 +712,11 @@
                 #{protocol}
             </foreach>
         </if>
+        <if test="!isRepeat">
+            AND api_test_case.id not in (
+            select api_case_id from test_plan_api_case where test_plan_id = #{testPlanId}
+            )
+        </if>
     </select>
 
 
diff --git a/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanApiCaseService.java b/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanApiCaseService.java
index 4bd8ec1a6a..9e2a446dcf 100644
--- a/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanApiCaseService.java
+++ b/backend/services/test-plan/src/main/java/io/metersphere/plan/service/TestPlanApiCaseService.java
@@ -644,7 +644,7 @@ public class TestPlanApiCaseService extends TestPlanResourceService {
                     if (CollectionUtils.isNotEmpty(dto.getSelectIds())) {
                         CollectionUtils.removeAll(dto.getSelectIds(), apiTestCaseList.stream().map(ApiTestCase::getId).toList());
                         //获取选中的ids数据
-                        List<ApiTestCase> selectIdList = extApiTestCaseMapper.getCaseListBySelectIds(apiCase.getModules().getProjectId(), dto.getSelectIds(), testPlan.getId(), apiCase.getModules().getProtocols());
+                        List<ApiTestCase> selectIdList = extApiTestCaseMapper.getCaseListBySelectIds(isRepeat, apiCase.getModules().getProjectId(), dto.getSelectIds(), testPlan.getId(), apiCase.getModules().getProtocols());
                         apiTestCaseList.addAll(selectIdList);
                     }