Abstract: The production engineering is a important part of overall plan of oilfield development. It is the directive technical document for carrying out the reservoir engineering plan and fulfilling the development design quota. According to the practice in recent years in Huabei Oilfield, this paper introduces a series of investigation, research work and method for production engineering technical plan design of oilfield developed by water flooding. It thinks that taking economic benefits as central work and emphasizing the systematization, synthesis and operation of plan are the key of production engineering plan design.