Using Wallops spectrum simulation of random wave in Luchao harbor,we determine the horizontal wave force of the upper structure of penetrated breakwater and pile foundation and uplift force,and derive and calculate the power spectrum value under one-in-100-year extreme wave condition.Based on the basic principle of finite element and dynamic response and using finite element software ANSYS,we carry out numerical simulation on the penetrated breakwater.From the static analysis,modal analysis and power spectral density analysis,we compare the results of breakwaters in bilateral and unilateral stress forces,and obtain the rationality of bilateral-wave-board piled permeable breakwater structure.Analyzing the hidden danger,and combining the differences of the static and dynamic calculation results,we may provide reference for the design.