Rural domestic sewage treatment stations are widely distributed, the overall scale is relatively small, the construction content is relatively simple, and most of the treatment stations have not built independent information collection equipment, and the supervision of the industry competent authorities is weak. In order to strengthen the information management of rural domestic sewage treatment facilities and actively carry out the application of management information, based on the current situation of rural domestic sewage treatment facilities in Shanghai, this paper puts forward the renovation and upgrading plan of information management system. According to the treatment process, data acquisition cabinet, PLC controller, data transmission module and DC power supply, communication card, electricity meter and auxiliary materials are set up. Build new water quality online monitoring system and other facilities and equipment to realize the working condition information of sewage treatment facilities, such as collecting pump, fan, dosing pump working condition signal and flow, liquid level, pressure, total power supply, voltage, current and other data and water quality information collection and transmission, to solve the problem of missing data collection and transmission equipment of existing facilities. To achieve the purpose of online supervision of management enterprises on rural domestic sewage treatment facilities.