diff --git a/src/Api/TakeoutSaaS.TenantApi/Services/ProductSkuSaveService.cs b/src/Api/TakeoutSaaS.TenantApi/Services/ProductSkuSaveService.cs
index 75fb21c..c7501c9 100644
--- a/src/Api/TakeoutSaaS.TenantApi/Services/ProductSkuSaveService.cs
+++ b/src/Api/TakeoutSaaS.TenantApi/Services/ProductSkuSaveService.cs
@@ -147,7 +147,9 @@ public sealed class ProductSkuSaveService(TakeoutAppDbContext dbContext)
                 continue;
             }
 
-            var generatedCode = normalizedSkuCode ?? GenerateUniqueSkuCode(productId, currentProductSkuCodes);
+            var generatedCode = !string.IsNullOrWhiteSpace(normalizedSkuCode)
+                ? normalizedSkuCode
+                : GenerateUniqueSkuCode(productId, currentProductSkuCodes);
             if (!plannedSkuCodes.Add(generatedCode))
             {
                 throw new BusinessException(ErrorCodes.BadRequest, $"SKU 编码冲突: {generatedCode}");