In this paper, the flexible modeling capabilities of ANSYS and the excellent nonlinear solving ability of ABAQUS were multiplied for simulating the deep 3D-excavation. The results illustrated that both advantages of two numerical analysis softwares were combined. The complex stresses and deformations of the deep 3D-excavation were exactly simulated. The approximate solutions show that this method could analyze the coupling effects between the soils and the walls of the 3D-excavation. It was a successful application of using advanced CAE technologies into geotechnical engineering.