From the perspective of the overall composition of biomass energy resources, biomass energy accounts for more than 70% of the total biomass energy in rural areas of China, and the rest is mainly urban life, sewage and forestry waste. From the perspective of biomass resources and utilization in advanced countries, the main composition is mainly forestry waste and fuel forest. Bioenergy equipment can turn biogas from waste into treasure. Compared with oil, coal and other energy sources, bioenergy equipment is pollution-free, renewable, easy to extract, storable and easy to transform, with shows significant advantages. Biogas purification is a kind of bioenergy equipment. It can use organic waste to produce natural gas and organic fertilizer. Biogas can turn waste into treasure, which has both economic value and ecological value.