diff --git a/mhd_wms/src/main/java/com/mhd/wms/application/service/stockReceiptOrder/StockReceiptOrderApplicationService.java b/mhd_wms/src/main/java/com/mhd/wms/application/service/stockReceiptOrder/StockReceiptOrderApplicationService.java
index daad3e047..ceeaaf8b4 100644
--- a/mhd_wms/src/main/java/com/mhd/wms/application/service/stockReceiptOrder/StockReceiptOrderApplicationService.java
+++ b/mhd_wms/src/main/java/com/mhd/wms/application/service/stockReceiptOrder/StockReceiptOrderApplicationService.java
@@ -540,23 +540,23 @@ public class StockReceiptOrderApplicationService {
                         }
                         // 只有当获取到值时才更新attributeValue（避免覆盖已有的值）
                         if (fieldValue != null) {
-                            // 扩展属性1-4：优先使用 material_more_detail 的值（按 material_detail_unique_id 存储，每个明细独立）
-                            // 避免从 ReceiptMaterialDetailPO 反射取值（主项/子项可能共用 in_unique_id，导致取到同一 in_material_detail 的错误值）
+                            // 子项（level=2）与主项共用 in_unique_id，ReceiptMaterialDetailPO 反射取值会得到 in_material_detail 的值，覆盖子项真实数据
+                            // 故 batch_ref_no、invoice_no、sheet_ref_no、box_pallet_no、ext_attr 等均优先用 material_more_detail
+                            boolean isChild = receiptMaterialDetailPO.getLevel() != null && receiptMaterialDetailPO.getLevel() == 2;
                             boolean isExtAttr = usedFieldName != null && (
                                     "ext_attr_1".equalsIgnoreCase(usedFieldName) || "extAttr1".equals(usedFieldName)
                                     || "ext_attr_2".equalsIgnoreCase(usedFieldName) || "extAttr2".equals(usedFieldName)
                                     || "ext_attr_3".equalsIgnoreCase(usedFieldName) || "extAttr3".equals(usedFieldName)
                                     || "ext_attr_4".equalsIgnoreCase(usedFieldName) || "extAttr4".equals(usedFieldName));
-                            if (isExtAttr) {
-                                // 扩展属性：优先从 material_more_detail 表查询（按 material_detail_unique_id + batch_detail_id）
+                            boolean preferMaterialMoreDetail = isExtAttr || isChild;
+                            if (preferMaterialMoreDetail) {
                                 String attrFromDb = getExtAttrFromMaterialMoreDetail(receiptMaterialDetailPO.getUniqueId(), batchDetailFeignPO.getBatchDetailId());
                                 if (StringUtils.isNotBlank(attrFromDb)) {
                                     materialMoreDetailPO.setAttributeValue(attrFromDb);
-                                    log.debug("扩展属性 batchDetailId={}, 使用 material_more_detail 的值={}", 
+                                    log.debug("批次属性 batchDetailId={}, 使用 material_more_detail 的值={}", 
                                             materialMoreDetailPO.getBatchDetailId(), attrFromDb);
                                 } else if (StringUtils.isNotBlank(materialMoreDetailPO.getAttributeValue())) {
-                                    // 已有值（来自 queryListChildren 的 merge）则保留
-                                    log.debug("扩展属性 batchDetailId={}, 保留已有值={}", 
+                                    log.debug("批次属性 batchDetailId={}, 保留已有值={}", 
                                             materialMoreDetailPO.getBatchDetailId(), materialMoreDetailPO.getAttributeValue());
                                 } else {
                                     materialMoreDetailPO.setAttributeValue(fieldValue);