Pollution prevention and treatment of livestock and poultry farms in scale is a priority in the pollution prevention of China´s rural environment,and also is key to blocking the problem sources of pollution in village. . Based on in-depth investigation, research and successful experience in the world, this paper puts forward techniques of pollution prevention and treatment involving solid muck treatment and recycling use, wastewater treatment and multipurpose utilization,and the deodorization in farms. The paper focuses on various techniques of wastewater treatment and multipurpose utilization in farm, It also evaluates the common techniques such as natural bio-treatment of wastewater, anaerobic bio-treatment, aerobic bio-treatment and advanced techniques (such as anaerobic-aerobic combined treatment, eco-engineering treatment technique).