diff --git a/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_10__functional_case.sql b/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_10__functional_case.sql
index 73bc36f11b..e768d3b421 100644
--- a/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_10__functional_case.sql
+++ b/backend/framework/domain/src/main/resources/migration/3.0.0/ddl/V3.0.0_10__functional_case.sql
@@ -188,7 +188,7 @@ CREATE TABLE IF NOT EXISTS functional_case_demand
     `case_id`         VARCHAR(50) NOT NULL COMMENT '功能用例ID',
     `parent`          VARCHAR(50) NOT NULL DEFAULT 'NONE' COMMENT '父需求id',
     `demand_id`       VARCHAR(50) COMMENT '需求ID',
-    `demand_name`     VARCHAR(64) NOT NULL DEFAULT 'NONE' COMMENT '需求标题',
+    `demand_name`     VARCHAR(255) NOT NULL DEFAULT 'NONE' COMMENT '需求标题',
     `demand_url`      VARCHAR(255) COMMENT '需求地址',
     `demand_platform` VARCHAR(64) NOT NULL DEFAULT 'LOCAL' COMMENT '需求所属平台',
     `create_time`     BIGINT      NOT NULL COMMENT '创建时间',
diff --git a/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseDemandService.java b/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseDemandService.java
index 1c2dd00c7f..95181b91ce 100644
--- a/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseDemandService.java
+++ b/backend/services/case-management/src/main/java/io/metersphere/functional/service/FunctionalCaseDemandService.java
@@ -102,15 +102,14 @@ public class FunctionalCaseDemandService {
         if (checkDemandList(request.getDemandList())) return;
         SqlSession sqlSession = sqlSessionFactory.openSession(ExecutorType.BATCH);
         FunctionalCaseDemandMapper functionalCaseDemandMapper = sqlSession.getMapper(FunctionalCaseDemandMapper.class);
-        List<String> demandIds = request.getDemandList().stream().map(DemandDTO::getDemandId).toList();
         FunctionalCaseDemandExample functionalCaseDemandExample = new FunctionalCaseDemandExample();
         functionalCaseDemandExample.createCriteria().andCaseIdEqualTo(request.getCaseId()).andDemandPlatformEqualTo(request.getDemandPlatform());
         List<FunctionalCaseDemand> existDemands = functionalCaseDemandMapper.selectByExample(functionalCaseDemandExample);
         List<String> existDemandIds = existDemands.stream().map(FunctionalCaseDemand::getDemandId).toList();
-        List<String> notRepeatDemandIds = demandIds.stream().filter(t -> !existDemandIds.contains(t)).toList();
-        Map<String, DemandDTO> demandDTOMap = request.getDemandList().stream().collect(Collectors.toMap(DemandDTO::getDemandId, t -> t));
-        for (String notRepeatDemandId : notRepeatDemandIds) {
-            DemandDTO demandDTO = demandDTOMap.get(notRepeatDemandId);
+        for (DemandDTO demandDTO : request.getDemandList()) {
+            if (StringUtils.isNotBlank(demandDTO.getDemandId()) && existDemandIds.contains(demandDTO.getDemandId())) {
+                continue;
+            }
             FunctionalCaseDemand functionalCaseDemand = buildFunctionalCaseDemand(request.getCaseId(), request.getDemandPlatform(), userId, demandDTO);
             functionalCaseDemandMapper.insert(functionalCaseDemand);
         }
@@ -168,6 +167,9 @@ public class FunctionalCaseDemandService {
         if (StringUtils.isBlank(demandDTO.getDemandName())) {
             throw new MSException(Translator.get("case.demand.name.not.exist"));
         }
+        if (demandDTO.getDemandName().length()>255) {
+            demandDTO.setDemandName(demandDTO.getDemandName().substring(0,255));
+        }
         functionalCaseDemand.setDemandName(demandDTO.getDemandName());
         if (StringUtils.isNotBlank(demandDTO.getDemandUrl())) {
             functionalCaseDemand.setDemandUrl(demandDTO.getDemandUrl());
diff --git a/backend/services/case-management/src/test/java/io/metersphere/functional/controller/FunctionalCaseDemandControllerTests.java b/backend/services/case-management/src/test/java/io/metersphere/functional/controller/FunctionalCaseDemandControllerTests.java
index 4ee161c0d6..4179fa9fe3 100644
--- a/backend/services/case-management/src/test/java/io/metersphere/functional/controller/FunctionalCaseDemandControllerTests.java
+++ b/backend/services/case-management/src/test/java/io/metersphere/functional/controller/FunctionalCaseDemandControllerTests.java
@@ -107,6 +107,20 @@ public class FunctionalCaseDemandControllerTests extends BaseTest {
         functionalCaseDemandExample.createCriteria().andCaseIdEqualTo("DEMAND_TEST_FUNCTIONAL_CASE_ID");
         functionalCaseDemands = functionalCaseDemandMapper.selectByExample(functionalCaseDemandExample);
         Assertions.assertFalse(functionalCaseDemands.isEmpty());
+
+        functionalCaseDemandRequest = new FunctionalCaseDemandRequest();
+        functionalCaseDemandRequest.setCaseId("DEMAND_TEST_FUNCTIONAL_CASE_ID");
+        functionalCaseDemandRequest.setDemandPlatform("Metersphere");
+        demandList = new ArrayList<>();
+        demandDTO = new DemandDTO();
+        demandDTO.setDemandName("手动加入孩子超长名字看看能不能截到255的速度和温度都会为fdhfjhdsfjhdsfjdshfjdsfhdsfhufkfjdfkgdgbdfjgdfgjbdfjbdfgjbdfgjkbdfjkgbdfjkgbdfjkbgdfjkbgdfjbgdfjgbdfjgbdfjbgdfjgbdfjgbdfjkgbdfjkgbdfkjgb返回武汉无法回我fhdfjdsfhsdhfdsfhdsjfhsdjfhdsfjdshfjdshfjdshfjdshfdjsfhdsjfhdjfhdsjfhdjksfhsdjfdsjfhdjfhdsjfh");
+        demandList.add(demandDTO);
+        functionalCaseDemandRequest.setDemandList(demandList);
+        this.requestPostWithOkAndReturn(URL_DEMAND_ADD, functionalCaseDemandRequest);
+        functionalCaseDemandExample = new FunctionalCaseDemandExample();
+        functionalCaseDemandExample.createCriteria().andCaseIdEqualTo("DEMAND_TEST_FUNCTIONAL_CASE_ID").andDemandNameLike("%手动加入孩子超长名字%");
+        functionalCaseDemands = functionalCaseDemandMapper.selectByExample(functionalCaseDemandExample);
+        Assertions.assertFalse(functionalCaseDemands.isEmpty());
     }
 
     @Test