Abstract:Taking the investigation of sewage pipeline network in an area of the plain river network area as an example, the methods of CCTV detection, sonar detection, periscope detection and etc. are used to detect the sewage pipeline network in the area, and the key and difficult points of pipe network investigation are summarized. Based on the investigation results of the pipe network, the regulating countermeasures for the sewage pipeline network in the area are analyzed. The relevant implementing proposals for investigating and regulating the sewage pipeline network in the area are put forward in order to provide the reference for the similar projects and to help the treatment of municipal sewage to improve the quality and efficiency.