To remain the geological underpinnings of location prognosis and exploration programs, the study on the structural controls of gold mineralization have been carry out in the southern kanggurtag structural gold belt of the central Eastern Tianshan. And a deformed flat- lying shear structure is distinguished by detailed regional structural analysis and structural examination in northern Yamansu. Removing later deformation effects suggests it resulted from a large- scale horizontal brittle ductile to ductile shear zone associated with northward layer- parallel shearing or low- angle thrust shearing (S1//S0) in the early stage of Late Paleozoic orogeny. The shear zone represents the first- order ore- controlling structure and provides a major fluid pathway for deeply sourced fluids escaping upward from subduction- zone. During the late stage of horizontal shearing, or transition from horizontal shearing to horizontal shortening resulted from two successive deformation phases in a progressive deformation event, the regional crust uplifted accompanied by the initiation of thrusting and folding. And a splay fault rising from the detachment zone had resulted in drainage and redistribution of deeply sourced fluids entrapped in detachment shear zones through fault- valve action. Ore- forming fluids upward migrate along fault, discharge and the gold deposited in secondary fracture networks to form vein- type to disseminated deposits in the hanging wall or hinge area of hanging wall anticline of fault. This is coincided with the emplacement of the quartz diorite porphyry bodies dated at 276.5±2.9 Ma. The later folding and faulting play an important role on the reconstruction and preservation to the gold ore.