Based on the rural household biogas data of each city in Hunan Province from 2009 to 2012, this study presents the spatio-temporal change and driving factors of the biogas development of each city in Hunan by variation coefficient, Theil index, relative change rate and factor analysis method, combining with Stata and GIS technology. The results indicate that: Firstly, the biogas digesters number and the biogas digesters per capita in Hunan both grow steadily; Secondly, the relative change rate of digesters number in Yongzhou and Yiyang are hig...