diff --git a/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/cook/service/impl/CookRecipeServiceImpl.java b/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/cook/service/impl/CookRecipeServiceImpl.java
index f461f5d..57dd60e 100644
--- a/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/cook/service/impl/CookRecipeServiceImpl.java
+++ b/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/cook/service/impl/CookRecipeServiceImpl.java
@@ -315,7 +315,9 @@ public class CookRecipeServiceImpl implements ICookRecipeService {
             CookRecipeDishes cookRecipeDishes = new CookRecipeDishes();
             BeanUtils.copyProperties(dishesDTO, cookRecipeDishes);
             cookRecipeDishes.setCreateTime(DateUtils.getNowDate());
-            cookRecipeDishes.setRemanentNum((int) (cookRecipeDishes.getSupplyNum() - cookRecipeDishes.getSaleNum()));
+            long supplyNum = Objects.isNull(cookRecipeDishes.getSupplyNum()) ? 0 : cookRecipeDishes.getSupplyNum();
+            long saleNum = Objects.isNull(cookRecipeDishes.getSaleNum()) ? 0 : cookRecipeDishes.getSaleNum();
+            cookRecipeDishes.setRemanentNum((int) (supplyNum - saleNum));
             cookRecipeDishes.setRecipeDetailId(cookRecipeDetail.getRecipeDetailId());
             cookRecipeDishesMapper.insertCookRecipeDishes(cookRecipeDishes);  //插入菜谱之菜品详情
         }