Abstract: To study the seismic response of underground cross-type metro interchange station structure under SV wave oblique incidence, the strata-station finite difference model is established with Flac3D software, carrying out oblique incidence numerical simulation. By coding with Fish language, the automatic application of equivalent nodal forces at the artificial boundary of the 3D model during SV wave oblique incidence is implemented. Station column top velocity time-history, relative displacements of slab and column top bottom, deformation of different sections, bending moment of slab and sidewall, and column top axial force for vertical incidence and oblique incidence of ground motion are comparatively analyzed. Results show that the deformation in the intersection area of the cross-type metro interchange station under the effect of ground motion is smaller than that in the non-intersection area. The internal forces of the top slab, bottom slab and sidewalls change abruptly at the intersecting boundary, and the horizontal shear deformation and vertical shear deformation occur simultaneously in the station when the SV wave is obliquely incident. The axial force at the top of the column in the intersection area is significantly larger than that in the non-intersection area during SV wave oblique incidence. The bending moment of the top slab increases with the increase of the incidence angle.