The treatment of rural domestic sewage is an important task to implement the strategy of rural revitalization,and an important content to improve the rural living environment and build a beautiful and livable countryside.Taking the treatment of rural domestic sewage in Shitai County as the research object,the present situation and effect of rural domestic sewage treatment were investigated on the spot.The results show that:at present,8 township government stations and 78 administrative villages in Shitai County have achieved full coverage of centralized sewage treatment facilities,the township level mainly adopts"A+MBR"process,and the central villages and certain scale villages adopt"A+MBBR"process,and the effluent reaches the"Pollutant Discharge Standard for Urban Sewage Treatment Plants"(GB 18918-2002)Grade A standard.There are some problems in the treatment of rural domestic sewage in Shitai County,such as large fluctuation of inlet water quality and quantity,one-size-fits-all treatment technology and standard,the quality of some construction and pipe network construction needs to be improved,the treatment scale is small,and the operation cost is high.It is necessary to further strengthen the construction of pipe network and enhance the capacity of sewage collection.Improve project supervision mechanism to enhance the effectiveness of operation and maintenance;improve the project operation system and raise the villagers'awareness of pollution control;it is more necessary to apply local policies and apply local standards to improve the suitability and efficiency of treatment.