In order to achieve a high degree of automation in dairy production,further improve the quality of dairy production,reduce production costs,increase personnel and equipment efficiency.It analyzed the business process of dairy production,business related information system,and established Manufacturing Execution System （MES）,which connected the production work order and production batch to the complete process of milk collection from the farm to the finished product delivery in this paper.It optimized the business of milk collection,pretreatment,filling and packaging,and realized the transparency of the dairy production process,the digitalization of quality control,the refinement of cost control,and the electronization of production business reports and equipment operation records.