Bauxite deposits have been recently discovered in south-western Tianshan, such as Beishan bauxite deposit in Wushi county, Qiaokemoke bauxite deposit in Wuqia county. The discovery not only is helpful to resolve the uneven distribution of mineral resources, and but also stimulate the electrolysis aluminum industry based on the sufficient local coal and power. This paper summarizes the metallogenetic system of bauxite deposits and mineralization conditions, presents that bauxite deposits can be formed, regardless of rock types, under a favorable environment. The paleogeography plays a key role in the formation of bauxite deposits. The bauxite deposits in the southwestern Tianshan are the Carboniferous clastic sedimentary deposits on the paleo-weathered crust.