The way which gets the energy by burning firewood straw and the other biomass has no substantive change in the rural area of China for thousands years.Since the beginning of the new century,China's rural energy technologies and utilization patterns has achieved rapid transformation Sichuan Nanchong city's rural biogas energy started building in the 1970s and has a certain influence in Sichuan and the whole country.Combined with the local reality of building a new countryside,Nanchong city promote vigorously the process of improving rural energy sector of municipality' s juris- diction Gaoping,Shunqing and Jialing in the 15 period.The project take the economical environment in rural areas im- prove significantly,and then get the considerable economic benefits toilet,pigpen and morass pool are jointed to a sys- tem.The gas output is used as farmer's living energy and the liquid and biogas residue are as a fertilizer to farmland, and then the harmless substances go into the environment,which become an example of agricultural cycle of an economy model.This model promotes rural energy efficiency of using biotechnology and improves the healthy status and condition of the farmer.Meanwhile the rural ecological homes and enriching gas project has also achieved the transformation of the local rural surplus labor.The government plays a very important role in rural biogas energy.The government initiatively create a position market environment,prices,taxes,financial subsides and preferential credit and stimulate the farmer's enthusiasm of building the morass pools.The successful experience of the rural ecological homes and enriching the gas project is worth learning in the new rural energy building.