To understand the potential of oil- gas exploration in the Gongliu sag, Ili basin, airborne hyperspectral SASI data was used to extract oil- gas hydrocarbon and related alteration information in the front of the western Awulale Mountain by MTMF method. The results show that hydrocarbon occurs mainly in the Permian Xiaoshansayi Formation, which reflects the distribution of oil shale strata and oil- gas seepage sites. Alteration related to oil- gas seepage is mainly clayization, followed by carbonatization. Clayization and carbonatation were found in the Gongliu sag, and are distributed mainly in the area between Baishidun village and Aktubek township. Four potential areas of oil- gas microseepage have been selected in the south of Baishidun village. Combined with regional geological and geophysical data, the study concludes that petroleum entrapment and hydrocarbon expulsion may start in the early Yanshannian and destroyed seriously in the Himalayan. Asymmetric compressive stress in the basin accelerated the vertical and lateral migration of oil gas, forming microseepage inside the basin. Some oil- gas migrated along faults to surface in front of Awulale Mountain, forming macroseepage ultimately. Based on comprehensive analysis, folded strata of the Permian underneath the microseepage areas in the south of Baishidun village will be target for future oil- gas exploration.