diff --git a/hb_server/apps/wpm/serializers.py b/hb_server/apps/wpm/serializers.py
index a8fa14a..96ee033 100644
--- a/hb_server/apps/wpm/serializers.py
+++ b/hb_server/apps/wpm/serializers.py
@@ -57,7 +57,7 @@ class PickSerializer(serializers.Serializer):
                     i['count'] = len(i['iproducts'])
                     isLowLevel = True
                 if i['count']>0:
-                    if 'iproducts' in i:
+                    if isLowLevel:
                         iproducts = i.pop('iproducts')
                     i['fifo'] = fifo
                     i['is_testok'] = True # 默认检测合格
@@ -91,12 +91,13 @@ class PickSerializer(serializers.Serializer):
                     spp.save()
                     if spp.count_pick > spp.count:
                         raise exceptions.APIException('超过计划需求数')
-                    # 更新半成品表
-                    wproducts = WProduct.objects.filter(pk__in=[x.wproduct for x in i['iproducts']])
-                    first_step = Step.objects.get(pk=sp.steps[0].id)
-                    wproducts.update(step=first_step, is_executed=False, 
-                    act_state=WProduct.WPR_ACT_STATE_DOING, is_hidden=False, warehouse=None,
-                    subproduction_plan=sp, production_plan=sp.production_plan)
+                    if isLowLevel:
+                        # 更新半成品表
+                        wproducts = WProduct.objects.filter(pk__in=[x.wproduct for x in i['iproducts']])
+                        first_step = Step.objects.get(pk=sp.steps[0].id)
+                        wproducts.update(step=first_step, is_executed=False, 
+                        act_state=WProduct.WPR_ACT_STATE_DOING, is_hidden=False, warehouse=None,
+                        subproduction_plan=sp, production_plan=sp.production_plan)
             sp.is_picked=True
             sp.state = SubProductionPlan.SUBPLAN_STATE_WORKING #生产中
             sp.state_date_real = timezone.now() #实际开工日期