diff --git a/apps/inm/services.py b/apps/inm/services.py
index f495012e..c584161c 100644
--- a/apps/inm/services.py
+++ b/apps/inm/services.py
@@ -64,7 +64,6 @@ class InmService:
                 if instance.type == MIO.MIO_TYPE_DO_IN: # 生产入库需要记录production_dept字段
                     if mb.production_dept is None or mb.production_dept == belong_dept:
                         mb.production_dept = belong_dept
-                        mb.save()
                     else:
                         raise ParseError('同种物料不同生产车间应该有不同批次号!')
                 mb.save()