As the main feature of the climate change, Global warming which was caused by carbon dioxide increases has already become the most serious challenge for human society, and how to reduce greenhouse gas emissions and achieve low carbon transformation is extremely urgent. Gannan plateau was chosen as the research area in this paper, and based on the peasant household survey data, and adopt life cycle assessment method to study of different livelihood strategies of farmers' carbon footprint in Gannan plateau. The paper estimates the direct and indirect energy consumption carbon footprint, and uses Least Square method to analyze the main influence factor of farmers' carbon footprint.The results show: (1) The farmer's per capital carbon footprints is 2.67 tCO₂ in Gannan plateau; (2) With the improvement of non-agricultural level, the farming household, and household with combined occupation and off farming household's direct and indirect energy consumption carbon footprint, in turn, drops, among them, the direct carbon footprint per capita were 3.70 t, 1.93 t and 0.78 t, indirect carbon footprint per capita were 0.62 t, 0.44 t and 0.29 t, And with the non-agricultural level improving, the proportion of the farmer's direct energy consumption will reduce, which is 85.65%, 81.43% and 72.90% respectively of its total carbon footprint. And indirect energy consumption will increase, which is 14.35%, 18.57% and 27.10% respectively of its total carbon footprint; (3) With peasant household family size increasing, income levels rising, the distance from the county town increasing and the level of consumption improvement, the farmers' carbon footprint is growing constantly; With the improvement of education degree of farmers, increase of Engel coefficient and non-agricultural labor deepening, the peasant households' carbon footprint is shrinking. Finally, in view of the present situation of Gannan plateau, this paper puts forward the corresponding policy recommendations: First, promoting the transformation of farmers livelihood, enhancing farmers livelihood diversification. Second, reducing the family population and improving the education level of labor force. Third, the farmer should adjust the life energy consumption pattern, such as advocating and encouraging farmers to use lower carbon efficient electricity or liquefied petroleum gas. Fourth, put the farmer, who lack of resources and live in remote, to a rich resources place, so as to the government can reasonably planning and constructing for energy infrastructure.