diff --git a/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/listener/StockInExcelListener.java b/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/listener/StockInExcelListener.java
index e5f4a121a..c7df783b9 100644
--- a/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/listener/StockInExcelListener.java
+++ b/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/listener/StockInExcelListener.java
@@ -92,18 +92,36 @@ public class StockInExcelListener extends AnalysisEventListener<Map<String, Obje
             LOGGER.debug("第1行：入库日期解析完成，值：{}", stockInDate);
         }
 
-        // OrderNO：查找包含"OrderNO"标签的下一个值
+        // OrderNO：优先查找"OrderNO"标签后的值（老模板布局，标签与值相邻）；
+        // 新模板第1行无"OrderNO"标签，单号值直接放在单元格中(如E1)，
+        // 此时取第1行中除标签、入库日期以外的第一个非空字符串值
         Object orderNoObj = getValueAfterLabel(data, "OrderNO");
+        if (orderNoObj == null) {
+            for (Object value : data.values()) {
+                if (value == null) {
+                    continue;
+                }
+                String str = value.toString().trim();
+                // 跳过标签单元格与已被识别为入库日期的值
+                if (str.isEmpty() || str.contains("入庫日期") || str.contains("OrderNO") || str.contains("Total")) {
+                    continue;
+                }
+                if (value == stockInDateObj) {
+                    continue;
+                }
+                orderNoObj = value;
+                break;
+            }
+        }
         if (orderNoObj != null) {
             String orderNo = orderNoObj.toString().trim();
             stockInHeader.setOrderNo(orderNo);
             LOGGER.debug("第1行：OrderNO解析完成，值：{}", orderNo);
         }
 
-        // 校验表头数据完整性
-        if (stockInHeader.getStockInDate() == null || stockInHeader.getOrderNo() == null || stockInHeader.getOrderNo().isEmpty()) {
-            LOGGER.warn("第1行表头数据不完整，入库日期：{}，OrderNO：{}",
-                    stockInHeader.getStockInDate(), stockInHeader.getOrderNo());
+        // 校验表头数据完整性（OrderNO允许为空：为空时由系统按规则生成业务单号）
+        if (stockInHeader.getStockInDate() == null) {
+            LOGGER.warn("第1行表头数据不完整，入库日期：{}", stockInHeader.getStockInDate());
         }
     }
 
diff --git a/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/persistence/ReservationStockInOrderImpl.java b/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/persistence/ReservationStockInOrderImpl.java
index ba2e86657..092b804cb 100644
--- a/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/persistence/ReservationStockInOrderImpl.java
+++ b/mhd_oms/src/main/java/com/mhd/oms/domain/reservationStockInOrder/repository/persistence/ReservationStockInOrderImpl.java
@@ -485,10 +485,26 @@ public class ReservationStockInOrderImpl extends ServiceImpl<ReservationStockInO
             throw new ServiceException("导入的产品均未配置货主，请先在物料档案中维护货主信息");
         }
         ReservationStockInOrderDO reservationStockInOrderDO = new ReservationStockInOrderDO();
-        // 生成业务单号
-        String orderNumber = reservationStockInOrderDomainService.generateReserveOrderNumber();
-        reservationStockInOrderDO.setInOrderNumber(orderNumber);
-        reservationStockInOrderDO.setBusinessOrderNo(orderNumber);
+        StockInHeader stockInHeader = resultDTO.getStockInHeader();
+        // 业务单号：优先使用模板自带OrderNO，与系统已有入库业务单号重复时提示；
+        // 模板未填单号时按 R+年月日+当日累加 规则生成（如R260717001、R260717002）
+        String templateOrderNo = stockInHeader.getOrderNo() == null ? "" : stockInHeader.getOrderNo().trim();
+        if (!templateOrderNo.isEmpty()) {
+            // 先校验模板单号是否符合规则：R+年月日+3位及以上序号，如R260717001
+            validateTemplateOrderNo(templateOrderNo);
+            // 跨两张入库单表查重（与手工新增取号逻辑保持一致）
+            // 注意：本类字段命名易混淆——stockInOrderMapper为reservation表，reservationStockInOrderMapper为reserve表
+            boolean duplicated = stockInOrderMapper.existsByOrderNumber(templateOrderNo) > 0
+                    || reservationStockInOrderMapper.countByInOrderNumber(templateOrderNo) > 0;
+            if (duplicated) {
+                throw new ServiceException("入库业务单号已存在：" + templateOrderNo + "，请修改模板中的OrderNO后重新导入");
+            }
+        }
+        if (templateOrderNo.isEmpty()) {
+            templateOrderNo = reservationStockInOrderDomainService.generateReserveOrderNumber();
+        }
+        reservationStockInOrderDO.setInOrderNumber(templateOrderNo);
+        reservationStockInOrderDO.setBusinessOrderNo(templateOrderNo);
         reservationStockInOrderDO.setOrganizationId(loginUser.getUserPo().getOrganizationId());
         reservationStockInOrderDO.setOrganizationName(loginUser.getUserPo().getOrganizationName());
         reservationStockInOrderDO.setTopOrganizationId(loginUser.getUserPo().getTopOrganizationId());
@@ -510,7 +526,6 @@ public class ReservationStockInOrderImpl extends ServiceImpl<ReservationStockInO
         reservationStockInOrderDO.setShipperId((Long) shipperIds.get(0).get("shipperId"));
         reservationStockInOrderDO.setShipperName((String) shipperIds.get(0).get("shipperName"));
         reservationStockInOrderDO.setShipperCode((String) shipperIds.get(0).get("shipperCode"));
-        StockInHeader stockInHeader = resultDTO.getStockInHeader();
         reservationStockInOrderDO.setWarehouseDate(stockInHeader.getStockInDate());
         reservationStockInOrderDO.setStorageTime(stockInHeader.getStockInDate());
         reservationStockInOrderDO.setExpectTime(stockInHeader.getStockInDate());
@@ -583,75 +598,41 @@ public class ReservationStockInOrderImpl extends ServiceImpl<ReservationStockInO
 
 
     /**
-     * 从单号列表中提取最大序号
-     * 单号格式: prefix + 数字序号（如 RK260807001 中 prefix=RK260807, 序号=001）
-     * 即使中间有删单，也能保证序号递增不重复
-     *
-     * @param orderNumbers 匹配的单号列表
-     * @param prefixLength 前缀长度（序号从该位置开始截取）
-     * @return 最大序号值，列表为空时返回0
+     * 校验模板自带业务单号是否符合规则：R + 年月日(yyMMdd) + 3位及以上序号
+     * 示例：R260717001、R260717002
+     * 格式不符或年月日部分非有效日期（如R261332001）时抛出提示
      */
-    private int extractMaxSequenceNumber(List<String> orderNumbers, int prefixLength) {
-        if (orderNumbers == null || orderNumbers.isEmpty()) {
-            return 0;
+    private void validateTemplateOrderNo(String orderNo) {
+        // R + 6位年月日 + 至少3位数字序号
+        if (!orderNo.matches("R\\d{9,}")) {
+            throw new ServiceException("入库业务单号格式不正确：" + orderNo
+                    + "，请按照[代码R+年月日+当日累加]规则填写单号，正确格式为R+年月日+3位序号，如R260717001");
         }
-        int maxSeq = 0;
-        for (String orderNumber : orderNumbers) {
-            if (orderNumber != null && orderNumber.length() > prefixLength) {
-                try {
-                    String seqStr = orderNumber.substring(prefixLength);
-                    int seq = Integer.parseInt(seqStr);
-                    if (seq > maxSeq) {
-                        maxSeq = seq;
-                    }
-                } catch (NumberFormatException e) {
-                    // 序号部分非数字，跳过
-                }
-            }
+        try {
+            SimpleDateFormat fmt = new SimpleDateFormat("yyMMdd");
+            fmt.setLenient(false);
+            fmt.parse(orderNo.substring(1, 7));
+        } catch (java.text.ParseException e) {
+            throw new ServiceException("入库业务单号格式不正确：" + orderNo
+                    + "，请按照[代码R+年月日+当日累加]规则填写单号，单号中的年月日无效，正确格式为R+年月日+3位序号，如R260717001");
         }
-        return maxSeq;
     }
 
     @Transactional(rollbackFor = Exception.class)
     public Boolean insertDomain(ReservationStockInOrderDO stockInOrderDO) {
-//        if (stockInOrderDO.getInOrderNumber() == null) {
-
-            //设置入库单号
-            Long warehouseId = stockInOrderDO.getWarehouseId();
-            AjaxResult ajaxResult = systemServiceFeign.getWarehouseInfoByWarehouseId(warehouseId);
-            if (!"200".equals(String.valueOf(ajaxResult.get("code")))) {
-                throw new ServiceException("获取仓库信息失败");
-            }
-            //仓库信息
-            WarehouseFeignPO warehouseFeignPO = com.alibaba.fastjson.JSON.parseObject(com.alibaba.fastjson2.JSONObject.toJSONString(ajaxResult.get("data")), WarehouseFeignPO.class);
-            String orderNoGenerateRule = warehouseFeignPO.getOrderNoGenerateRule();
-            String prefix = warehouseFeignPO.getInOrderNoPrefix();
-            if (prefix == null || prefix.isEmpty()) {
-                prefix = "RK";
-            }
-            Long organizationId = stockInOrderDO.getOrganizationId();
-            Long warehouseIdForCount = stockInOrderDO.getWarehouseId();
-            if (orderNoGenerateRule != null && "0".equals(orderNoGenerateRule)) {
-                //日期累加: 前缀 + 当前日期yymmdd + 当天最大序号+1
-                String dateStr = new SimpleDateFormat("yyMMdd").format(new Date());
-                String datePrefix = prefix + dateStr;
-                List<String> orderNumbers = reservationStockInOrderMapper.getMaxStockInOrderByPrefixAndOrgAndWarehouse(datePrefix, organizationId, warehouseIdForCount);
-                int maxSeq = extractMaxSequenceNumber(orderNumbers, datePrefix.length());
-                String seq = String.format("%03d", maxSeq + 1);
-                stockInOrderDO.setInOrderNumber(datePrefix + seq);
-                stockInOrderDO.setBusinessOrderNo(datePrefix + seq);
-            } else {
-                //历史累加: 前缀 + 历史最大序号+1
-                List<String> orderNumbers = reservationStockInOrderMapper.getMaxStockInOrderByPrefixAndOrgAndWarehouse(prefix, organizationId, warehouseIdForCount);
-                int maxSeq = extractMaxSequenceNumber(orderNumbers, prefix.length());
-                String seq = String.format("%03d", maxSeq + 1);
-                stockInOrderDO.setInOrderNumber(prefix + seq);
-                stockInOrderDO.setBusinessOrderNo(prefix + seq);
-            }
+        // 仓库信息校验（保留原有行为：仓库信息获取失败直接报错）
+        Long warehouseId = stockInOrderDO.getWarehouseId();
+        AjaxResult ajaxResult = systemServiceFeign.getWarehouseInfoByWarehouseId(warehouseId);
+        if (!"200".equals(String.valueOf(ajaxResult.get("code")))) {
+            throw new ServiceException("获取仓库信息失败");
+        }
+        // 入库单号：调用方已设置（如导入时优先使用模板自带OrderNO，且已校验不重复）则沿用，不再覆盖；
+        // 未设置时按 R+年月日+当日累加 规则生成（如R260717001、R260717002），跨reservation/reserve两表取号防撞
+        if (stockInOrderDO.getInOrderNumber() == null || stockInOrderDO.getInOrderNumber().trim().isEmpty()) {
             stockInOrderDO.setInOrderNumber(reservationStockInOrderDomainService.generateReserveOrderNumber());
-            stockInOrderDO.setBusinessOrderNo(stockInOrderDO.getInOrderNumber());
-//        }
-//        //统计总计划数
+        }
+        stockInOrderDO.setBusinessOrderNo(stockInOrderDO.getInOrderNumber());
+        //统计总计划数
         BigDecimal quantity =  stockInOrderDO.getMaterialDetailList().stream().map(ReservationInMaterialDetailDO::getQuantity).filter(Objects::nonNull).reduce(BigDecimal.ZERO, BigDecimal::add);
         stockInOrderDO.setQuantity(quantity);
         BigDecimal amount =  stockInOrderDO.getMaterialDetailList().stream().map(ReservationInMaterialDetailDO::getTotalPrice).filter(Objects::nonNull).reduce(BigDecimal.ZERO, BigDecimal::add);