The Gudongshan fault belt is situated in the Bachu rise,west part of the Tarim Basin,with NW-orientated striking and elongating beyond 140 km. Based on careful interpretation of seismic profiles,four generations of structural deformation have been recognized,i.e.,the Cambro-Ordovician normal faulting,the Permian normal faulting,the Miocene thrusting and Pliocene-Pleistocene thrusting,and the latter being accompanied by normal faulting. The basement-involved thrusting in age of Miocene is main-controlling structure of the Gudongshan fault belt and consists of the main body of the belt,where the deformation style is fault-propagation folding. The Cambro-Ordovician normal faulting,firstly represented by this paper,makes up a compound horst and is buried beneath the Miocene fractures. The Permian normal faulting is accompanied with magmatism. The Miocene thrusting of the Gudongshan fracture is obviously constrained by the pre-existed normal faults and magmatic rocks,meanwhile,the Miocene fractural structures are reformed by the later faulting,i.e.,the Pliocene-Pleistocene thrusting and normal faulting. The southeast terminal of Gudongshan fault belt connect the west terminal of Mazhatag structural belt,but they are not one fault belt.