diff --git a/pages/order_food/order_food.vue b/pages/order_food/order_food.vue
index f75947f..4213efb 100644
--- a/pages/order_food/order_food.vue
+++ b/pages/order_food/order_food.vue
@@ -359,7 +359,7 @@
 				this.opacity = true
 			}
 			this.$u.debounce(() => {
-				if (e.scrollTop >= this.scrollTopSize) { //控制大图层
+				if (e.scrollTop + 20 >= this.scrollTopSize) { //控制大图层
 					this.isFixed = false;
 				} else {
 					this.isFixed = true;