diff --git a/src/main/java/com/xujie/modules/inspection/mapper/InspectionRequestDetailSubMapper.java b/src/main/java/com/xujie/modules/inspection/mapper/InspectionRequestDetailSubMapper.java
index a061e58..58431fa 100644
--- a/src/main/java/com/xujie/modules/inspection/mapper/InspectionRequestDetailSubMapper.java
+++ b/src/main/java/com/xujie/modules/inspection/mapper/InspectionRequestDetailSubMapper.java
@@ -26,4 +26,19 @@ public interface InspectionRequestDetailSubMapper extends BaseMapper<InspectionR
     );
 
     int deleteByRequestNo(@Param("site") String site, @Param("requestNo") String requestNo);
+
+    /**
+     * 查询指定订单是否还有其他验货申请（排除当前申请单）
+     * @param site 站点
+     * @param orderNo 订单号
+     * @param itemNo 行号
+     * @param excludeRequestNo 排除的申请单号
+     * @return 其他验货申请的数量
+     */
+    int countOtherInspectionRequests(
+            @Param("site") String site,
+            @Param("orderNo") String orderNo,
+            @Param("itemNo") Integer itemNo,
+            @Param("excludeRequestNo") String excludeRequestNo
+    );
 }
diff --git a/src/main/java/com/xujie/modules/inspection/service/impl/InspectionRequestServiceImpl.java b/src/main/java/com/xujie/modules/inspection/service/impl/InspectionRequestServiceImpl.java
index 6977670..33741d0 100644
--- a/src/main/java/com/xujie/modules/inspection/service/impl/InspectionRequestServiceImpl.java
+++ b/src/main/java/com/xujie/modules/inspection/service/impl/InspectionRequestServiceImpl.java
@@ -1,6 +1,8 @@
 package com.xujie.modules.inspection.service.impl;
 
 import com.alibaba.excel.EasyExcel;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
 import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
@@ -13,6 +15,9 @@ import com.xujie.modules.inspection.entity.QcPersonList;
 import com.xujie.modules.inspection.mapper.InspectionRequestDetailMapper;
 import com.xujie.modules.inspection.mapper.InspectionRequestDetailSubMapper;
 import com.xujie.modules.order.dao.PODetailMapper;
+import com.xujie.modules.order.dao.POHeaderMapper;
+import com.xujie.modules.order.entity.PODetail;
+import com.xujie.modules.order.entity.POHeader;
 import com.xujie.modules.srm.mapper.SrmSupplierMapper;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -47,9 +52,9 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
 
     @Autowired
     private PODetailMapper podetailMapper;
-    
+
     @Autowired
-    private com.xujie.modules.order.dao.POHeaderMapper poheaderMapper;
+    private POHeaderMapper poheaderMapper;
 
     @Autowired
     private SrmSupplierMapper srmSupplierMapper;
@@ -148,30 +153,30 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
                 }
 
                 // 检查并更新POHeader和PODetail状态：已下达 -> 待验货
-                com.xujie.modules.order.entity.PODetail poDetail = 
+                PODetail poDetail =
                     podetailMapper.selectByPK(item.getOrderNo(), site, item.getItemNo());
-                
+
                 if (poDetail != null && "已下达".equals(poDetail.getStatus())) {
                     // 更新 PODetail 状态为待验货
                     podetailMapper.update(null,
-                        new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.PODetail>()
-                            .eq(com.xujie.modules.order.entity.PODetail::getOrderNo, item.getOrderNo())
-                            .eq(com.xujie.modules.order.entity.PODetail::getSite, site)
-                            .eq(com.xujie.modules.order.entity.PODetail::getItemNo, item.getItemNo())
-                            .set(com.xujie.modules.order.entity.PODetail::getStatus, "待验货")
+                        new LambdaUpdateWrapper<PODetail>()
+                            .eq(PODetail::getOrderNo, item.getOrderNo())
+                            .eq(PODetail::getSite, site)
+                            .eq(PODetail::getItemNo, item.getItemNo())
+                            .set(PODetail::getStatus, "待验货")
                     );
-                    
-                    log.info("开验货申请单 - 更新PODetail状态为待验货: orderNo={}, itemNo={}", 
+
+                    log.info("开验货申请单 - 更新PODetail状态为待验货: orderNo={}, itemNo={}",
                         item.getOrderNo(), item.getItemNo());
-                    
+
                     // 更新 POHeader 状态为待验货
                     poheaderMapper.update(null,
-                        new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.POHeader>()
-                            .eq(com.xujie.modules.order.entity.POHeader::getOrderNo, item.getOrderNo())
-                            .eq(com.xujie.modules.order.entity.POHeader::getSite, site)
-                            .set(com.xujie.modules.order.entity.POHeader::getStatus, "待验货")
+                        new LambdaUpdateWrapper<POHeader>()
+                            .eq(POHeader::getOrderNo, item.getOrderNo())
+                            .eq(POHeader::getSite, site)
+                            .set(POHeader::getStatus, "待验货")
                     );
-                    
+
                     log.info("开验货申请单 - 更新POHeader状态为待验货: orderNo={}", item.getOrderNo());
                 }
 
@@ -266,7 +271,7 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
             throw new RuntimeException("只有状态为草稿，待审核和已下达的验货申请允许删除，当前状态：" + header.getStatus());
         }
 
-        // 2. 查询sub表，回退PO明细的to_inspect_qty数量
+        // 2. 查询sub表，回退PO明细的to_inspect_qty数量，并检查是否需要回退订单状态
         List<InspectionRequestDetailSub> subList =
                 inspectionRequestDetailSubMapper.selectByRequestNo(site, requestNo);
 
@@ -285,6 +290,57 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
                                 + "-" + sub.getPoItemNo()
                 );
             }
+
+            // 检查该订单是否还有其他验货申请
+            int otherRequestCount = inspectionRequestDetailSubMapper.countOtherInspectionRequests(
+                    site,
+                    sub.getPoNo(),
+                    sub.getPoItemNo(),
+                    requestNo
+            );
+
+            // 如果没有其他验货申请，则回退订单状态：待验货 -> 已下达
+            if (otherRequestCount == 0) {
+                PODetail poDetail =
+                    podetailMapper.selectByPK(sub.getPoNo(), site, sub.getPoItemNo());
+
+                if (poDetail != null && "待验货".equals(poDetail.getStatus())) {
+                    // 更新 PODetail 状态为已下达
+                    podetailMapper.update(null,
+                        new LambdaUpdateWrapper<PODetail>()
+                            .eq(PODetail::getOrderNo, sub.getPoNo())
+                            .eq(PODetail::getSite, site)
+                            .eq(PODetail::getItemNo, sub.getPoItemNo())
+                            .set(PODetail::getStatus, "已下达")
+                    );
+
+                    log.info("删除验货申请 - 回退PODetail状态为已下达: orderNo={}, itemNo={}",
+                        sub.getPoNo(), sub.getPoItemNo());
+
+                    // 检查 POHeader 下所有 PODetail 是否都是已下达状态
+                    // 如果是，则将 POHeader 也回退为已下达
+                    java.util.List<PODetail> allDetails =
+                        podetailMapper.selectList(
+                            new LambdaQueryWrapper<PODetail>()
+                                .eq(PODetail::getOrderNo, sub.getPoNo())
+                                .eq(PODetail::getSite, site)
+                        );
+
+                    boolean allReleased = allDetails.stream()
+                        .allMatch(detail -> "已下达".equals(detail.getStatus()));
+
+                    if (allReleased) {
+                        poheaderMapper.update(null,
+                            new LambdaUpdateWrapper<POHeader>()
+                                .eq(POHeader::getOrderNo, sub.getPoNo())
+                                .eq(POHeader::getSite, site)
+                                .set(POHeader::getStatus, "已下达")
+                        );
+
+                        log.info("删除验货申请 - 回退POHeader状态为已下达: orderNo={}", sub.getPoNo());
+                    }
+                }
+            }
         }
 
         // 3. 删除子表明细 srm_inspect_request_detail_sub
@@ -693,29 +749,29 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
         if (subList != null && !subList.isEmpty()) {
             for (InspectionRequestDetailSub sub : subList) {
                 // 查询当前 PODetail
-                com.xujie.modules.order.entity.PODetail poDetail = 
+                PODetail poDetail =
                     podetailMapper.selectByPK(sub.getPoNo(), site, sub.getPoItemNo());
-                
+
                 if (poDetail != null && "待验货".equals(poDetail.getStatus())) {
                     // 更新 PODetail 状态为验货中
                     podetailMapper.update(null,
-                        new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.PODetail>()
-                            .eq(com.xujie.modules.order.entity.PODetail::getOrderNo, sub.getPoNo())
-                            .eq(com.xujie.modules.order.entity.PODetail::getSite, site)
-                            .eq(com.xujie.modules.order.entity.PODetail::getItemNo, sub.getPoItemNo())
-                            .set(com.xujie.modules.order.entity.PODetail::getStatus, "验货中")
+                        new LambdaUpdateWrapper<PODetail>()
+                            .eq(PODetail::getOrderNo, sub.getPoNo())
+                            .eq(PODetail::getSite, site)
+                            .eq(PODetail::getItemNo, sub.getPoItemNo())
+                            .set(PODetail::getStatus, "验货中")
                     );
-                    
+
                     log.info("开始验货 - 更新PODetail状态为验货中: orderNo={}, itemNo={}", sub.getPoNo(), sub.getPoItemNo());
-                    
+
                     // 更新 POHeader 状态为验货中
                     poheaderMapper.update(null,
-                        new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.POHeader>()
-                            .eq(com.xujie.modules.order.entity.POHeader::getOrderNo, sub.getPoNo())
-                            .eq(com.xujie.modules.order.entity.POHeader::getSite, site)
-                            .set(com.xujie.modules.order.entity.POHeader::getStatus, "验货中")
+                        new LambdaUpdateWrapper<POHeader>()
+                            .eq(POHeader::getOrderNo, sub.getPoNo())
+                            .eq(POHeader::getSite, site)
+                            .set(POHeader::getStatus, "验货中")
                     );
-                    
+
                     log.info("开始验货 - 更新POHeader状态为验货中: orderNo={}", sub.getPoNo());
                 }
             }
@@ -779,33 +835,33 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
         if (subList != null && !subList.isEmpty()) {
             for (InspectionRequestDetailSub sub : subList) {
                 // 查询当前 PODetail 的 inspect_approve_qty
-                com.xujie.modules.order.entity.PODetail poDetail = 
+                PODetail poDetail =
                     podetailMapper.selectByPK(sub.getPoNo(), site, sub.getPoItemNo());
-                
+
                 if (poDetail != null) {
-                    BigDecimal currentApproveQty = poDetail.getInspectApproveQty() != null 
+                    BigDecimal currentApproveQty = poDetail.getInspectApproveQty() != null
                         ? poDetail.getInspectApproveQty() : BigDecimal.ZERO;
                     BigDecimal newApproveQty = currentApproveQty.add(sub.getQty());
-                    
+
                     // 更新 PODetail 的 inspect_approve_qty
                     int podUpdateCount = podetailMapper.update(null,
-                        new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.PODetail>()
-                            .eq(com.xujie.modules.order.entity.PODetail::getOrderNo, sub.getPoNo())
-                            .eq(com.xujie.modules.order.entity.PODetail::getSite, site)
-                            .eq(com.xujie.modules.order.entity.PODetail::getItemNo, sub.getPoItemNo())
-                            .set(com.xujie.modules.order.entity.PODetail::getInspectApproveQty, newApproveQty)
+                        new LambdaUpdateWrapper<PODetail>()
+                            .eq(PODetail::getOrderNo, sub.getPoNo())
+                            .eq(PODetail::getSite, site)
+                            .eq(PODetail::getItemNo, sub.getPoItemNo())
+                            .set(PODetail::getInspectApproveQty, newApproveQty)
                     );
-                    
+
                     if (podUpdateCount == 0) {
                         log.warn("更新 PODetail 验货完成数量失败: orderNo={}, itemNo={}", sub.getPoNo(), sub.getPoItemNo());
                     } else {
                         log.info("更新 PODetail 验货完成数量: orderNo={}, itemNo={}, qty={}, 原数量={}, 新数量={}",
                             sub.getPoNo(), sub.getPoItemNo(), sub.getQty(), currentApproveQty, newApproveQty);
-                        
+
                         // 根据验货完成数量更新 PODetail 和 POHeader 状态
                         BigDecimal orderQty = poDetail.getQty() != null ? BigDecimal.valueOf(poDetail.getQty()) : BigDecimal.ZERO;
                         String newStatus;
-                        
+
                         if (newApproveQty.compareTo(orderQty) >= 0) {
                             // 验货完成数量 >= 订单数量：验货完成
                             newStatus = "验货完成";
@@ -816,27 +872,27 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
                             // 验货完成数量 = 0：保持原状态或回退到待验货
                             newStatus = poDetail.getStatus();
                         }
-                        
+
                         // 更新 PODetail 状态
                         podetailMapper.update(null,
-                            new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.PODetail>()
-                                .eq(com.xujie.modules.order.entity.PODetail::getOrderNo, sub.getPoNo())
-                                .eq(com.xujie.modules.order.entity.PODetail::getSite, site)
-                                .eq(com.xujie.modules.order.entity.PODetail::getItemNo, sub.getPoItemNo())
-                                .set(com.xujie.modules.order.entity.PODetail::getStatus, newStatus)
+                            new LambdaUpdateWrapper<PODetail>()
+                                .eq(PODetail::getOrderNo, sub.getPoNo())
+                                .eq(PODetail::getSite, site)
+                                .eq(PODetail::getItemNo, sub.getPoItemNo())
+                                .set(PODetail::getStatus, newStatus)
                         );
-                        
-                        log.info("验货完成 - 更新PODetail状态: orderNo={}, itemNo={}, 状态={}", 
+
+                        log.info("验货完成 - 更新PODetail状态: orderNo={}, itemNo={}, 状态={}",
                             sub.getPoNo(), sub.getPoItemNo(), newStatus);
-                        
+
                         // 更新 POHeader 状态
                         poheaderMapper.update(null,
-                            new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.POHeader>()
-                                .eq(com.xujie.modules.order.entity.POHeader::getOrderNo, sub.getPoNo())
-                                .eq(com.xujie.modules.order.entity.POHeader::getSite, site)
-                                .set(com.xujie.modules.order.entity.POHeader::getStatus, newStatus)
+                            new LambdaUpdateWrapper<POHeader>()
+                                .eq(POHeader::getOrderNo, sub.getPoNo())
+                                .eq(POHeader::getSite, site)
+                                .set(POHeader::getStatus, newStatus)
                         );
-                        
+
                         log.info("验货完成 - 更新POHeader状态: orderNo={}, 状态={}", sub.getPoNo(), newStatus);
                     }
                 }
@@ -929,24 +985,24 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
                 int podRollbackCount = podetailMapper.deductInspectApproveQty(
                     sub.getPoNo(), site, sub.getPoItemNo(), sub.getQty()
                 );
-                
+
                 if (podRollbackCount == 0) {
                     log.warn("回滚 PODetail 验货完成数量失败: orderNo={}, itemNo={}", sub.getPoNo(), sub.getPoItemNo());
                 } else {
                     log.info("回滚 PODetail 验货完成数量: orderNo={}, itemNo={}, 扣减qty={}",
                         sub.getPoNo(), sub.getPoItemNo(), sub.getQty());
-                    
+
                     // 查询更新后的 PODetail 以获取最新的 inspect_approve_qty
-                    com.xujie.modules.order.entity.PODetail poDetail = 
+                    PODetail poDetail =
                         podetailMapper.selectByPK(sub.getPoNo(), site, sub.getPoItemNo());
-                    
+
                     if (poDetail != null) {
-                        BigDecimal newApproveQty = poDetail.getInspectApproveQty() != null 
+                        BigDecimal newApproveQty = poDetail.getInspectApproveQty() != null
                             ? poDetail.getInspectApproveQty() : BigDecimal.ZERO;
-                        
+
                         // 根据验货完成数量更新 PODetail 和 POHeader 状态
                         String newStatus;
-                        
+
                         if (newApproveQty.compareTo(BigDecimal.ZERO) > 0) {
                             // 验货完成数量 > 0：部分验货
                             newStatus = "部分验货";
@@ -954,27 +1010,27 @@ public class InspectionRequestServiceImpl extends ServiceImpl<InspectionRequestH
                             // 验货完成数量 = 0：回退到待验货
                             newStatus = "待验货";
                         }
-                        
+
                         // 更新 PODetail 状态
                         podetailMapper.update(null,
-                            new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.PODetail>()
-                                .eq(com.xujie.modules.order.entity.PODetail::getOrderNo, sub.getPoNo())
-                                .eq(com.xujie.modules.order.entity.PODetail::getSite, site)
-                                .eq(com.xujie.modules.order.entity.PODetail::getItemNo, sub.getPoItemNo())
-                                .set(com.xujie.modules.order.entity.PODetail::getStatus, newStatus)
+                            new LambdaUpdateWrapper<PODetail>()
+                                .eq(PODetail::getOrderNo, sub.getPoNo())
+                                .eq(PODetail::getSite, site)
+                                .eq(PODetail::getItemNo, sub.getPoItemNo())
+                                .set(PODetail::getStatus, newStatus)
                         );
-                        
-                        log.info("回滚验货 - 更新PODetail状态: orderNo={}, itemNo={}, 状态={}, 当前数量={}", 
+
+                        log.info("回滚验货 - 更新PODetail状态: orderNo={}, itemNo={}, 状态={}, 当前数量={}",
                             sub.getPoNo(), sub.getPoItemNo(), newStatus, newApproveQty);
-                        
+
                         // 更新 POHeader 状态
                         poheaderMapper.update(null,
-                            new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<com.xujie.modules.order.entity.POHeader>()
-                                .eq(com.xujie.modules.order.entity.POHeader::getOrderNo, sub.getPoNo())
-                                .eq(com.xujie.modules.order.entity.POHeader::getSite, site)
-                                .set(com.xujie.modules.order.entity.POHeader::getStatus, newStatus)
+                            new LambdaUpdateWrapper<POHeader>()
+                                .eq(POHeader::getOrderNo, sub.getPoNo())
+                                .eq(POHeader::getSite, site)
+                                .set(POHeader::getStatus, newStatus)
                         );
-                        
+
                         log.info("回滚验货 - 更新POHeader状态: orderNo={}, 状态={}", sub.getPoNo(), newStatus);
                     }
                 }
diff --git a/src/main/resources/mapper/inspection/InspectionRequestDetailSubMapper.xml b/src/main/resources/mapper/inspection/InspectionRequestDetailSubMapper.xml
index 63a0fcf..ba21532 100644
--- a/src/main/resources/mapper/inspection/InspectionRequestDetailSubMapper.xml
+++ b/src/main/resources/mapper/inspection/InspectionRequestDetailSubMapper.xml
@@ -65,4 +65,14 @@
         WHERE site = #{site}
           AND request_no = #{requestNo}
     </delete>
+
+    <!-- 查询指定订单是否还有其他验货申请（排除当前申请单） -->
+    <select id="countOtherInspectionRequests" resultType="int">
+        SELECT COUNT(1)
+        FROM srm_inspect_request_detail_sub
+        WHERE site = #{site}
+          AND po_no = #{orderNo}
+          AND po_item_no = #{itemNo}
+          AND request_no != #{excludeRequestNo}
+    </select>
 </mapper>