With the possibility of shale gas accumulation, the shale of the Upper Triassic Xujiahe Formation is well developed in the southern Longmen Mountain for-land basin, but the degree of prospecting is low. Based on the field profile mea-surement and fixed-point sampling, rock pyrolysis experiment, TOC determination, the test of vitrinite reflectance （Ro） and core data, the organic geochemical characteristics of shale was analyzed. The results show that the TOC content of shale ranges from 1% to 2%, reaching fair-good according to gas generation standards. Kerogen is mainly Ⅲ type, secondly Ⅱ2 type. Being from 0.8% to 1.7% generally, some above 2.0%, the maturity of organic matter is at the mature to high mature stage of evolution. Through the analysis of the organic geochemical characteristics and geologic parameters （porosity, burial depth and effetive thickness） of the shale of Xujiahe Formation, it is considered that the fifth member and third member of Xujiahe Formation are favorable for shale gas exploration in the southern Longmen Mountain foreland basin.