Abstract: In the past, 2D mapping is the main tool for structural research that is the basis of oil exploration and development, such a graph is no intuitive or visual. 3D structural modeling and 3D visualizaion study normally focuses on local or smaller scale structures. For such a Junggar basin with developed overthrust faulting and multistage faults, it is very difficult in technology to develop basin?level 3D structural model and realize 3D visual display, undoubtedly. In this paper, the layer simulation, fault grading simulation and fault line space assignment techniques are successfully applied to Junggar basin, providing new tools for study of large?scale structutes in detail