diff --git a/dating-agency-mall-server/src/main/java/com/qniao/dam/api/command/order/user/request/UserSubmitOrderDto.java b/dating-agency-mall-server/src/main/java/com/qniao/dam/api/command/order/user/request/UserSubmitOrderDto.java
index a0ccedb..d935705 100644
--- a/dating-agency-mall-server/src/main/java/com/qniao/dam/api/command/order/user/request/UserSubmitOrderDto.java
+++ b/dating-agency-mall-server/src/main/java/com/qniao/dam/api/command/order/user/request/UserSubmitOrderDto.java
@@ -9,6 +9,7 @@ import lombok.Data;
 import javax.validation.constraints.NotNull;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 @Data
 public class UserSubmitOrderDto implements Trans2DomainAssembler<Order> {
@@ -30,7 +31,7 @@ public class UserSubmitOrderDto implements Trans2DomainAssembler<Order> {
         List<OrderItem> orderItemList = new ArrayList<>();
         OrderItem orderItem = new OrderItem();
         orderItem.setProductSpecId(productSpecId);
-        orderItem.setQuantity(quantity);
+        orderItem.setQuantity(Objects.nonNull(quantity) ? quantity : 1);
         orderItemList.add(orderItem);
         order.setOrderItemList(orderItemList);
         return order;