In order to simulate the action of waves on Submarine Structures, COMSOL Multiphysics Finite Element Analysis Software was used. By solving Helmholtz equation in frequency domain of given frequency and introducing artificially applied background acoustics field, considering incidence and penetration of acoustics pressure at the junction of seabed and water surface, a total acoustics field is established. Porous media was characterized by Biot’s consolidation theory to compute the displacement field and acoustics pressure fluctuation in porous media propagating porous elastic waves, considering the viscous loss of the model,so the deformation of Solid Matrix can be described. Finally, a numerical model of wave-pile-seabed was established by coupling the pressure acoustic physical field with the physical field of porous media. The influence of different wave frequencies and wave incidence angles on the displacement of piles and the influence of different wave incidence angles on the stress of piles were analyzed. Finally, the liquefaction of soil around piles was studied.