diff --git a/src/main/java/com/ycwl/basic/pricing/service/impl/PriceCalculationServiceImpl.java b/src/main/java/com/ycwl/basic/pricing/service/impl/PriceCalculationServiceImpl.java
index d4fd148..9f64f6e 100644
--- a/src/main/java/com/ycwl/basic/pricing/service/impl/PriceCalculationServiceImpl.java
+++ b/src/main/java/com/ycwl/basic/pricing/service/impl/PriceCalculationServiceImpl.java
@@ -35,7 +35,21 @@ public class PriceCalculationServiceImpl implements IPriceCalculationService {
         if (request.getProducts() == null || request.getProducts().isEmpty()) {
             throw new PriceCalculationException("商品列表不能为空");
         }
-        
+
+        request.getProducts().forEach(product -> {
+            if (product.getProductType() == null) {
+                throw new PriceCalculationException("商品类型不能为空");
+            }
+            if (product.getProductId() == null) {
+                throw new PriceCalculationException("商品ID不能为空");
+            }
+            if (product.getPurchaseCount() == null) {
+                product.setPurchaseCount(1);
+            }
+            if (product.getQuantity() == null) {
+                product.setQuantity(1);
+            }
+        });
         // 计算商品价格和原价
         PriceDetails priceDetails = calculateProductsPriceWithOriginal(request.getProducts());
         BigDecimal totalAmount = priceDetails.getTotalAmount();