Tongnan, Bajiaochang and Guang’an gas reservoirs are analyzed, which respectively represents the natural gas reservoir characteristics of the second, the fourth and the sixth member of Upper Triassic Xujiahe Formation in central Sichuan Basin. The research indicates that the gas reservoir-forming is characterized by short distance migration and accumulation of hydrocarbons in this area. The types of gas reservoirs in northern part are structural and structural-lithologic gas reservoirs, in central and southern part are lithologic and fractural-lithologic gas reservoirs caused by the distribution of ancient monadnock and palaeohigh, and in the western slope is mainly fractural-lithologic gas reservoir. Good source rocks provide enough hydrocarbons for gas reservoirs forming by means of distance migration and accumulation, large faults are the key factors for natural gas preservation, and ancient monadnock, palaeohigh and slope are effective areas to accumulate natural gas. This research provides theoretical basis for gas reservoirs exploration in Xujiahe Formation in central Sichuan Basin.