Abstract: This paper explores statistical methods to analyze the impacts of household biogas promotion on farmers' planting behaviors in terms of descriptive statistics and econometric models. The results show that the household biogas promotion has strengthened the motivation of farmers to participate the planting endeavor, has impelled the improvement of planting technology and facilitated the transformation of production manners from semi-autarky to intensive production oriented by market demands, as well as has increased the incomes of rural households. Furthermore, the household biogas promotion has apparent technology improvement effects in terms that it has changed the characteristics of constant return of scale in agricultural production and has impelled the transformation of production practice from ways of increasing yields and income by means of factor inputs to by means of realizing increasing the return of scale depending on the technology enhancement.