The phenomenon of water waves/soil interaction in a porous seabed has been extensively studied by geotechnical and coastal engineers in recent years. However, most previous investigations have simply considered the seabed as an isotropic medium, even though evidence of soil cross‐anisotropy has been reported in soil mechanic literature. In this paper, an analytical solution for wave‐induced soil response in a cross‐anisotropic seabed is proposed. Based on the new solution, together with the liquefaction criterion, the wave‐induced liquefaction potential can be estimated. As the numerical results presented shows, the influence of elastic anisotropic parameters on the wave‐induced pore pressure and the maximum liquefaction depth is significant.