diff --git a/hw-ui/src/views/mes/productOrder/productionScheduling.vue b/hw-ui/src/views/mes/productOrder/productionScheduling.vue
index a1ede3d..35e883b 100644
--- a/hw-ui/src/views/mes/productOrder/productionScheduling.vue
+++ b/hw-ui/src/views/mes/productOrder/productionScheduling.vue
@@ -520,7 +520,7 @@ export default {
         if (planBeginTime != null && planEndTime != null) {
           item.duration = this.calculateDaysDifference(planBeginTime, planEndTime);
         }
-        if (this.arrangeType === 1 && planEndTime != null){
+        if (this.arrangeType === 1 && planEndTime != null && children != null) {
           const date = new Date(planEndTime);
           date.setDate(date.getDate() + 1);
           children.forEach(item => {