Based on the OpenFOAM,the momentum damping equation and regular wave grid boundary are implanted to form a reliable three-dimensional moving grid gas-liquid two-phase flow numerical wave flume.On the slope platform with a slope of 1：6,the gas-liquid two-phase flow breaking process of waves in the coastal shallow bank surf zone is simulated.The numerical simulation results are in good agreement with the experimental values,and the simulation of wave deformation,collapse and ambient gas changes in the shallow beach crushing area is complete,which can provide good data support for the study of wave crushing mechanism.