Based on the geophysics, geology and remote sensing image analysis, the western Qiulitagh structural belt developed strikeslip duplex on the surface and its form was affected by strikeslip faults in prePaleogene basement. The genetic relationship is indirect because a heavy Paleogene evaporates imbedded between the basement and surface structures. The strikeslip duplex formed under the combined stress of the N—S direction approximately compression and the basement sinistral strikeslip activity in the southern Tianshan Mountain—Tarim foreland during the late Himalayan movement, and was provided with transtension at releasing bend. In the western Qiulitagh structural belt, the deformation of the Paleogene basement is characterized by flower structure and the strata overlying evaporate triangle zone exhibited dipslip, these structures associated with salt structures to form finally the “sandwich” geological model of the study area.