The Tuonamu area locates at southward edge of the North Qiangtang Basin, Tibet. From analysis of hydrocarbon geology, it is considered that the Upper Jurassic stratum in the Tuonamu area has effective reservoir beds and reservoir bodies. The Upper Jurassic stratum in the Tuonamu area is characterized by a good generation-reservoir-seal assemblage, and it has hydrocarbon source rocks of high hydrocarbon-generating capability, effective and timely traps, and favorable conducting and preservation conditions. The trap of the Tuonamu anticline is considered to have a favorable exploration potential of hydrocarbon.