本文提出一套适于城市污水管网系统设计的系统工程方法,它包括:污水厂群选址和排水域划分的方法、污水管网系统布局的确定方法、污水管道参数的选择方法.该套方法用于江苏省无锡市污水管网系统的设计中,取得了良好的经济效益和社会效益. This paper proposes a set of system engineering methods suitable for urban sewage pipe network system design, which includes: the method of site selection and drainage area division of sewage plant groups, the method of determining the layout of the sewage pipe network system, and the method of selecting the parameters of the sewage pipeline. The method was applied to the design of sewage pipe network system in Wuxi City, Jiangsu Province, and achieved good economic and social benefits.