diff --git a/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/service/impl/SmErpSpuServiceImpl.java b/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/service/impl/SmErpSpuServiceImpl.java
index 4836da3d2..741abfd9a 100644
--- a/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/service/impl/SmErpSpuServiceImpl.java
+++ b/pjcloud-supermarket/pjcloud-supermarket-biz/src/main/java/com/bsd/pjcloud/supermarket/service/impl/SmErpSpuServiceImpl.java
@@ -953,7 +953,10 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                 }
 
                 if (!errorReasons.isEmpty()) {
-                    errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
+                    List<String> prefixed = errorReasons.stream()
+                            .map(msg -> "货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - " + msg)
+                            .collect(Collectors.toList());
+                    errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), prefixed));
                     continue;
                 }
 
@@ -963,7 +966,10 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                     categoryId = resolveCategory(dto.getCategoryName(), errorReasons, rowNumber, dto.getProductCode(), 
                         SecurityUtils.getUser().getDeptId(), null);
                     if (categoryId == null) {
-                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
+                        List<String> prefixed = errorReasons.stream()
+                                .map(msg -> "货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - " + msg)
+                                .collect(Collectors.toList());
+                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), prefixed));
                         continue;
                     }
                 }
@@ -973,7 +979,10 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                 if (StringUtils.isNotBlank(dto.getSupplierName())) {
                     supplierId = resolveSupplierId(dto.getSupplierName(), errorReasons, rowNumber, dto.getProductCode());
                     if (supplierId == null) {
-                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
+                        List<String> prefixed = errorReasons.stream()
+                                .map(msg -> "货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - " + msg)
+                                .collect(Collectors.toList());
+                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), prefixed));
                         continue;
                     }
                 }
@@ -1054,14 +1063,13 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                 SmErpUnitEntity existingUnit = smErpUnitService.getOne(existingUnitWrapper);
 
                 if (existingUnit != null) {
-                    // 更新现有包装单位（不改动主数据）
-                    existingUnit.setPackageNum(dto.getPackageNum());
-                    existingUnit.setBarCode(org.apache.commons.lang3.StringUtils.isNotBlank(dto.getBarCode()) ? dto.getBarCode() : null); // 更新条码
-                    existingUnit.setPurchasePrice(unit.getPurchasePrice());
-                    existingUnit.setRetailPrice(unit.getRetailPrice());
-                    existingUnit.setPromotionPrice(unit.getPromotionPrice());
-                    existingUnit.setCostPrice(unit.getCostPrice());
-                    smErpUnitService.updateById(existingUnit);
+                    // 包装单位已存在：记录重复并跳过，不做更新（importNew 为新增模式）
+                    String duplicateKey = org.apache.commons.lang3.StringUtils.isNotBlank(dto.getBarCode())
+                            ? ("条码:" + dto.getBarCode())
+                            : ("单位:" + dto.getUnit() + ", 口味:" + (dto.getTaste() == null ? "" : dto.getTaste()) + ", 规格:" + (dto.getSpec() == null ? "" : dto.getSpec()));
+                    errorReasons.add("货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - 包装单位已存在，跳过导入（" + duplicateKey + ")");
+                    errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
+                    continue;
                 } else {
                     smErpUnitService.save(unit);
                 }
@@ -1100,7 +1108,7 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                         SmErpAuxiliaryCodeEntity auxiliaryCode = new SmErpAuxiliaryCodeEntity();
                         auxiliaryCode.setSpuId(spu.getId());
                         auxiliaryCode.setBarCode(auxiliaryBarcode);
-                        auxiliaryCode.setUnitId(existingUnit != null ? existingUnit.getId() : unit.getId());
+                        auxiliaryCode.setUnitId(unit.getId());
                         smErpAuxiliaryCodeService.save(auxiliaryCode);
                     }
                 }
@@ -1119,12 +1127,9 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                 SmErpStockEntity existingStock = smErpStockService.getOne(existingStockWrapper);
 
                 if (existingStock != null) {
-                    // 更新现有库存记录
-                    existingStock.setInventoryUpperLimit(dto.getInventoryUpperLimit() != null ? dto.getInventoryUpperLimit() : 1000);
-                    existingStock.setInventoryLowerLimit(dto.getInventoryLowerLimit() != null ? dto.getInventoryLowerLimit() : 10);
-                    existingStock.setBaseStock(dto.getStock() != null ? dto.getStock() : 0.0);
-                    existingStock.setCurrentStock(dto.getStock() != null ? dto.getStock() : 0.0);
-                    smErpStockService.updateById(existingStock);
+                    // 库存记录已存在，记录并跳过（importNew 不覆盖库存）
+                    errorReasons.add("货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - 库存记录已存在，跳过导入以避免覆盖线上数据");
+                    errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
                 } else {
                     smErpStockService.save(stock);
                 }
@@ -1174,7 +1179,10 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                 }
 
                 if (!errorReasons.isEmpty()) {
-                    errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
+                    List<String> prefixed = errorReasons.stream()
+                            .map(msg -> "货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - " + msg)
+                            .collect(Collectors.toList());
+                    errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), prefixed));
                     continue;
                 }
 
@@ -1184,7 +1192,10 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                     categoryId = resolveCategory(dto.getCategoryName(), errorReasons, rowNumber, dto.getProductCode(), 
                         SecurityUtils.getUser().getDeptId(), null);
                     if (categoryId == null) {
-                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
+                        List<String> prefixed = errorReasons.stream()
+                                .map(msg -> "货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - " + msg)
+                                .collect(Collectors.toList());
+                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), prefixed));
                         continue;
                     }
                 }
@@ -1194,7 +1205,10 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
                 if (StringUtils.isNotBlank(dto.getSupplierName())) {
                     supplierId = resolveSupplierId(dto.getSupplierName(), errorReasons, rowNumber, dto.getProductCode());
                     if (supplierId == null) {
-                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), errorReasons));
+                        List<String> prefixed = errorReasons.stream()
+                                .map(msg -> "货号:" + dto.getProductCode() + " 商品名称:" + dto.getProductName() + " - " + msg)
+                                .collect(Collectors.toList());
+                        errorList.add(createErrorInfo(rowNumber, dto.getProductCode(), prefixed));
                         continue;
                     }
                 }
@@ -1610,6 +1624,16 @@ public class SmErpSpuServiceImpl extends ServiceImpl<SmErpSpuMapper, SmErpSpuEnt
         return errorInfo;
     }
 
+    // 错误信息构建（包含商品名称的重载）
+    private Map<String, Object> createErrorInfo(int row, String productCode, String productName, List<String> reasons) {
+        Map<String, Object> errorInfo = new LinkedHashMap<>();
+        errorInfo.put("row", row);
+        errorInfo.put("productCode", productCode);
+        errorInfo.put("productName", productName);
+        errorInfo.put("reasons", new ArrayList<>(reasons));
+        return errorInfo;
+    }
+
     // 结果构建（完整实现）
     private R buildImportResult(int total, int successCount, List<Map<String, Object>> errorList) {
         Map<String, Object> result = new LinkedHashMap<>();