diff --git a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/entity/YieldOrder.java b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/entity/YieldOrder.java
index 9d6afd8d8..5f16990b8 100644
--- a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/entity/YieldOrder.java
+++ b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/entity/YieldOrder.java
@@ -514,6 +514,9 @@ public class YieldOrder extends BaseEntity {
 	@Schema(description = "原生产订单ID")
 	private Long oldYoId;
 
+	@Schema(description = "一级工序名称状态")
+	private Integer firseqNameStatus;
+
 	@JsonSerialize(nullsUsing = NullSerializer.class)
 	private Double plateThickness1;
 
diff --git a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/enums/YieldOrderEnum.java b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/enums/YieldOrderEnum.java
index a9c1be384..0218aad69 100644
--- a/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/enums/YieldOrderEnum.java
+++ b/blade-service-api/blade-desk-api/src/main/java/org/springblade/desk/order/pojo/enums/YieldOrderEnum.java
@@ -84,6 +84,13 @@ public enum YieldOrderEnum {
 	VALIDATION_RESULT_DELIVERY("交期冲突", 16005),
 	VALIDATION_RESULT_LESS_MATERIAL("物料需求异常", 16006),
 	VALIDATION_RESULT_PASS("验证完成", 16007),
+
+	/**
+	 * 一级工序状态
+	 */
+	FIRSEQ_NAME_EXIST("存在",17001),
+	FIRSEQ_NAME_NOT_EXIST ("不存在",17002)
+
 	;
 	final String name;
 	final int code;
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartMapper.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartMapper.java
index bc767504e..ce791be4d 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartMapper.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartMapper.java
@@ -155,4 +155,6 @@ public interface DsPartMapper extends BaseMapper<DsPartEntity> {
 	List<DsPartEntity> selectListPartByCodeLike(@Param("zPartCode") String zPartCode);
 
     List<DsPartSub> selectOldMesPartSubBySubCode(@Param("subCode") String subCode);
+
+    List<DsPartEntity> selectDsPartByPartCodeList(@Param("partCodeList") List<String> partCodeList);
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartRelationMapper.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartRelationMapper.java
index e530cef74..1a36cf6e6 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartRelationMapper.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/DsPartRelationMapper.java
@@ -72,4 +72,6 @@ public interface DsPartRelationMapper extends BaseMapper<DsPartRelationEntity> {
 																	 @Param("zPartIdList")List<Long> zPartIdList);
 
 	DsPartRelationEntity selectByPartCodeAndSubCode(@Param("partCode") String parentPartCode,@Param("subCode") String subCode);
+
+	List<PartRelationEntity> selectDsPartRelationByPartIdList(@Param("partIdList") List<Long> partIdList);
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartMapper.xml b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartMapper.xml
index d5d9f1e68..c1848cff7 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartMapper.xml
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartMapper.xml
@@ -419,6 +419,15 @@
     src.MATERIAL, src.PLATE_CODE, src.SIN_TER_TYPE
       FROM MJMES.DS_PART_SUB src where src.SUB_CODE = #{subCode}
     </select>
+    <select id="selectDsPartByPartCodeList"
+            resultType="org.springblade.desk.dashboard.pojo.entity.DsPartEntity">
+        select * from DS_PART
+        where is_deleted = 0
+        and part_code in
+        <foreach collection="partCodeList" item="partCode" open="(" close=")" separator=",">
+            #{partCode}
+        </foreach>
+    </select>
 
 
 </mapper>
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartRelationMapper.xml b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartRelationMapper.xml
index 7bbd173a2..c88248c13 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartRelationMapper.xml
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/mapper/PartRelationMapper.xml
@@ -85,6 +85,14 @@
          and PART_CODE = #{partCode}
          and CHILD_PART_CODE = #{subCode}
     </select>
+    <select id="selectDsPartRelationByPartIdList"
+            resultType="org.springblade.scheduling.pojo.entity.PartRelationEntity">
+        select * from DS_PART_RELATION where is_deleted = 0
+        and PART_ID in
+        <foreach collection="partIdList" item="partId" open="(" close=")" separator=",">
+            #{partId}
+        </foreach>
+    </select>
 
 
 </mapper>
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartRelationService.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartRelationService.java
index 232bfd812..14e0b3fd9 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartRelationService.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartRelationService.java
@@ -86,4 +86,11 @@ public interface IDsPartRelationService extends BaseService<DsPartRelationEntity
 	 * @return
 	 */
 	DsPartRelationEntity selectByPartCodeAndSubCode(String partCode, String subCode);
+
+	/**
+	 * 根据零件号查询子件
+	 * @param partIdList
+	 * @return
+	 */
+	List<PartRelationEntity> selectDsPartRelationByPartIdList(List<Long> partIdList);
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartService.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartService.java
index fc07b66ca..8a6802987 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartService.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/IDsPartService.java
@@ -309,4 +309,11 @@ public interface IDsPartService extends BaseService<DsPartEntity> {
 	 * @return
 	 */
     List<DsPartSub> selectOldMesPartSubBySubCode(String subCode);
+
+	/**
+	 * 根据零件号查询
+	 * @param partCodeList
+	 * @return
+	 */
+	List<DsPartEntity> selectDsPartByPartCodeList(List<String> partCodeList);
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartRelationServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartRelationServiceImpl.java
index bccb4f2f2..9bc64030c 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartRelationServiceImpl.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartRelationServiceImpl.java
@@ -84,4 +84,9 @@ public class DsPartRelationServiceImpl extends BaseServiceImpl<DsPartRelationMap
 		return partRelationMapper.selectByPartCodeAndSubCode(parentPartCode,subCode);
 	}
 
+	@Override
+	public List<PartRelationEntity> selectDsPartRelationByPartIdList(List<Long> partIdList) {
+		return partRelationMapper.selectDsPartRelationByPartIdList(partIdList);
+	}
+
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartServiceImpl.java
index 02d05107e..8a2e8a62a 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartServiceImpl.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/dashboard/service/impl/DsPartServiceImpl.java
@@ -936,6 +936,11 @@ public class DsPartServiceImpl extends BaseServiceImpl<DsPartMapper, DsPartEntit
 		return dsPartMapper.selectOldMesPartSubBySubCode(subCode);
 	}
 
+	@Override
+	public List<DsPartEntity> selectDsPartByPartCodeList(List<String> partCodeList) {
+		return dsPartMapper.selectDsPartByPartCodeList(partCodeList);
+	}
+
 	/**
 	 * 根据工艺获取工序ID列表（支持返工工艺和正常工艺）
 	 */
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/controller/YieldOrderController.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/controller/YieldOrderController.java
index 4f52fe9ca..c683a5f08 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/controller/YieldOrderController.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/controller/YieldOrderController.java
@@ -375,4 +375,10 @@ public class YieldOrderController extends BladeController {
 	public R createBlbYieldOrder(@RequestParam String partCode,@RequestParam Double qty,@RequestParam String memo) {
 		return R.data(yieldOrderService.createBlbYieldOrder(partCode,qty,memo));
 	}
+
+	@PostMapping("/subItemAssignment")
+	@Operation(summary = "子件下达", description = "")
+	public R subItemAssignment(@Parameter(description = "主键", required = true) @RequestParam String id) {
+		return R.data(yieldOrderService.subItemAssignment(id));
+	}
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/IYieldOrderService.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/IYieldOrderService.java
index 904656dcf..df8688d77 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/IYieldOrderService.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/IYieldOrderService.java
@@ -309,4 +309,11 @@ public interface IYieldOrderService extends BaseService<YieldOrder> {
 	 * @return
 	 */
 	List<YieldOrder> selectByFatherYoId(Long yieldOrderId);
+
+	/**
+	 * 下达子件
+	 * @param id
+	 * @return
+	 */
+	boolean subItemAssignment(String id);
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java
index 8c45e30dc..f427959be 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/order/service/impl/YieldOrderServiceImpl.java
@@ -1,5 +1,6 @@
 package org.springblade.desk.order.service.impl;
 
+import cn.hutool.core.collection.CollUtil;
 import cn.hutool.http.HttpUtil;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONArray;
@@ -374,16 +375,18 @@ public class YieldOrderServiceImpl extends BaseServiceImpl<YieldOrderMapper, Yie
                 this.updateById(yieldOrder);
             }
             //查询一级工序名称
-            String roamNoText = dsPartService.findNameByRoamNo(yieldOrder.getPartCode(), yieldOrder.getRoamNo());
-            if(StringUtils.isEmpty(roamNoText)){
+            String firseqName = dsPartService.findNameByRoamNo(yieldOrder.getPartCode(), yieldOrder.getRoamNo());
+            if(StringUtils.isEmpty(firseqName)){
                 yieldOrder.setValidationResult(YieldOrderEnum.VALIDATION_RESULT_LESS_DATA.getCode());
                 yieldOrder.setValidationTime(DateUtil.now());
                 yieldOrder.setValidationMomo("未查询一级工序名称");
                 this.updateById(yieldOrder);
+            }else {
+                yieldOrder.setFirseqNameStatus(YieldOrderEnum.FIRSEQ_NAME_NOT_EXIST.getCode());
             }
 
             // 验证烧结订单的b号描述，如果包含封接字样则验证子件，不包含则不验证
-            if (roamNoText.contains(YieldOrderConst.ROAMNO_TEXT_FJ)) {
+            if (firseqName.contains(YieldOrderConst.ROAMNO_TEXT_FJ)) {
                 DsPartEntity partEntity = dsPartService.selectDsPartByPatCodeAndVersion(yieldOrder.getPartCode(), yieldOrder.getPartVersion());
                 // 烧结订单 需要校验子件必须包含【玻璃饼、壳体、插针、石墨模】
                 if(yieldOrder.getYieldType().equals(YieldOrderEnum.YIELD_TYPE_2.getCode())){
@@ -1820,6 +1823,78 @@ public class YieldOrderServiceImpl extends BaseServiceImpl<YieldOrderMapper, Yie
         return baseMapper.selectByFatherYoId(yieldOrderId);
     }
 
+    @Override
+    public boolean subItemAssignment(String yieldOrderId) {
+        // 查询需要下发的订单
+        YieldOrder yieldOrder = this.getById(yieldOrderId);
+        if (yieldOrder == null) {
+            throw new ServiceException("无下发订单信息");
+        }
+
+        // 检查一级工序状态
+        if (yieldOrder.getFirseqNameStatus().equals(YieldOrderEnum.FIRSEQ_NAME_NOT_EXIST.getCode())) {
+            throw new ServiceException("子件无法下发，一级工序名称不存在");
+        }
+
+        // 查询零件
+        DsPartEntity part = dsPartService.selectDsPartByPatCode(yieldOrder.getPartCode())
+                .stream()
+                .findFirst()
+                .orElseThrow(() -> new ServiceException("暂无零件信息"));
+
+        // 查询子件
+        List<DsPartRelationEntity> partRelationList = partRelationService.selectDsPartRelationByPartId(part.getId());
+        if (partRelationList.isEmpty()) {
+            throw new ServiceException("暂无子件信息");
+        }
+
+        // 获取所有子件编码
+        Set<String> childPartCodeSet = partRelationList.stream()
+                .map(DsPartRelationEntity::getChildPartCode)
+                .filter(Objects::nonNull)
+                .filter(code -> !code.isEmpty())
+                .collect(Collectors.toSet());
+
+        // 查询已生成的子件订单
+        List<YieldOrder> yieldOrderList = baseMapper.selectByFatherYoId(Long.valueOf(yieldOrderId));
+
+        // 获取已生成订单中的零件编码
+        Set<String> existingPartCodeSet = yieldOrderList.stream()
+                .filter(order -> order.getPartCode() != null)
+                .map(YieldOrder::getPartCode)
+                .collect(Collectors.toSet());
+
+        // 需要创建的子件编码 = 子件编码集合 - 已存在的订单编码
+        List<String> partSubCodeList = childPartCodeSet.stream()
+                .filter(code -> !existingPartCodeSet.contains(code))
+                .collect(Collectors.toList());
+
+        // 如果没有需要创建的子件，直接返回
+        if (partSubCodeList.isEmpty()) {
+            log.info("所有子件订单都已存在，无需创建");
+            return true;
+        }
+
+        // 批量查询子件零件信息
+        List<DsPartEntity> dsPartEntityList = dsPartService.selectDsPartByPartCodeList(partSubCodeList);
+
+        if (dsPartEntityList.isEmpty()) {
+            log.warn("未查询到子件零件信息，子件编码：{}", partSubCodeList);
+            return true;
+        }
+
+        // 创建子件订单
+        try {
+            createSubYieldOrder(yieldOrder, dsPartEntityList, true, AuthUtil.getUser().getUserId());
+            log.info("子件订单创建成功，父订单ID：{}，创建子件数量：{}", yieldOrderId, dsPartEntityList.size());
+        } catch (BusinessException e) {
+            log.error("创建子件订单失败，父订单ID：{}", yieldOrderId, e);
+            throw new ServiceException("创建子件订单失败：" + e.getMessage());
+        }
+
+        return true;
+    }
+
     /**
      * @param codeType 0:订单号、1：流程卡号；2、批次号
      * @return String