Abstract: The tight sandstone oil and gas in Tarim Basin is characterized with wide exploration area, large-scale reserves, and low proportion of proved reserves, and also faces the problems of hydrocarbon source distribution, complex reservoir prediction, as well as oil and gas accumulation mode, which restrict the overall profitable exploration and development of tight reservoirs. Based on outcrop profile, experimental analysis, geophysical and well logging data, a detailed analysis is performed on the new fields and resource potential of tight sandstone reservoirs in forelands and basins. The results show that the new fields of tight sandstone oil and gas in Kuqa depression are dominated by the medium to thick gravel sandstones of the Cretaceous Yageliemu Formation and the medium to thick sandstones of the Middle Jurassic Kezilenuer Formation, forming the structural-lithologic reservoirs longitudinally adjacent to high-quality source rocks in the Upper Member of Pusige Formation, and transversely adjacent to structural-lithological hydrocarbon reservoirs in the hydrocarbon generating center of Awati sag. In the north wing of the Kelasu structural belt and the Dongqiu-Dina structural belt in Kuqa depression, the cumulative area of tight oil and gas traps is 1 830 km² for tight oil and gas, and the predicted natural gas resource is 16 625×10⁸m³. The favorable trap area of tight oil and gas in Kedong structural belt of southwest depression of Tarim Basin is 301 square kilometers, and the natural gas geological resources are estimated to be about 2 930×10⁸m³ and the condensate oil geological resources are about 2×10⁸t. The favorable area of tight oil and gas in Kepingtage Formation in the northwest margin of Awati sag is 4 320 km², the natural gas resources are estimated to be 7 076×10⁸m³, and oil resources are 7 817×10⁴t. New fields and resource potential provide a solid foundation for sustained and efficient hydrocarbon exploration.