Artificial source wide-angle reflection/refraction seismic data has the characteristics of large offset and low signal to noise ratio. The crustal velocity is usually reconstructed by seismic wave traveltime tomography. As one of the effective methods to obtain the underground structure in the field of exploration seismology,the reverse time migration imaging method can effectively make up for the lack of traveltime inversion methods. In this paper,the wave field simulation of the large-offset wide-angle reflection/refraction seismic test is carried out by using the spectral element method based on quadrilaterals. This method combines the geometrical flexibility of the finite element method and the exponential convergence rate associated with spectral method,which is believed to be an important method of seismic wavefiled modeling owing to its high efficiency and high accuracy. After the seismic records are obtained,the synthetic seismic records are migration homed by the reverse time migration imaging method,and the geomorphic structure of the crust is obtained. The results show that the reverse time migration is suitable for the interpretation of wide-angle seismic data,which provides the theoretical basis and support for the migration imaging of the actual seismic data.