Abstract: Huhhot was Chinese milk city. Due to the rapid development of dairy, its quantity of cultivated cows was rising linearly. At the same time, a large amount of dung was produced, which caused serious environmental pollution. Under the historical chance of nationally advocating energy-conservation and discharge-reduction economical society, this was a unharmonious factor to hinder social development undoubtedly. So, finding a industrial treatment model suitable for the anaerobic fermentation of cow dung under low temperature had important meaning for the development of animal husbandry and new energy source in Inner Mongolia.