Abstract: Since the discovery of a large gas field in Jingbian Carboniferous tight sandstone of Ordos basin in 1989, China ’s tight rocks exploration for petroleum has a history for more than 20years. In recent years, many tight sandstone oil and gas fields have been found in Silurian, Carboniferous ? Permian, Triassic and Cretaceous in Ordos, Sichuan, Junggar and Tarim basins, further proving that China’s petroleum potentials in tight rocks are great. The study suggests that, of the so many strata, the Carboniferous? Permian tight rocks oil? gas exploration prospects are the largest. Also, this paper presents and discusses the oil ? gas prospects and targets from the prototype basins’sedimentary systems and petroleum systems