Biogas is a clean energy, which produces from wasting thing like animal dung, filthy water from animal farm, filthy water from industrial factory, garbage and others waste from agriculture through the fermentation process anaerobic digestion from many kinds of bacteria under the proper environment condition. Biogas can use as a variety useful thing such as use instead of cooking gas, diesel oil, electric and firewood that is helped to maintain the environment as well. Ban Sanokthongkung, Chomphet District, Luangprabang Province, the main occupation is agricultural like do paddy rice farm, vegetable gardens and livestock. Their livestock mostly of people is pig; by the way they do not know how to deal with the animal dung, which produces environmental pollution. The project aims at conduct and install how to use the bio gas as a model for 5 families in Ban Sanokthongkung that is including technical advice and how to maintain. Using bio gas can replace of firewood, project will provide the training on how to use bio gas and handle with the smell of pig manure which is causing the environment pollution by indirect and direct ways.