diff --git a/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java b/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java
index 8179a363..605f1077 100644
--- a/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java
+++ b/src/main/java/com/peanut/modules/book/controller/BuyOrderController.java
@@ -250,6 +250,11 @@ public class BuyOrderController {
 
         totalPrice = totalPrice.subtract(buyOrder.getJfDeduction()==null?BigDecimal.ZERO:buyOrder.getJfDeduction());
 
+
+        if(buyOrder.getRealMoney().compareTo(totalPrice)!=0){
+            return R.error("系统错误订单金额异常！");
+        }
+
         String orderSn = IdWorker.getTimeId().substring(0, 32);
         buyOrder.setOrderSn(orderSn);
         if(buyOrder.getAddressId()!=0){