The numerical model for wave propagation in rigid vegetation water was developed based on Boussinesq equation,in which the drag force due to vegetation was added.The model was verified by comparing the numerical and experimental results.The model was used to test the effects of vegetation parameters as well as the incident wave parameters on wave propagation.The numerical results indicates that the ratio of wave height attention and wave energy attention increase with the increasing of plant density and plant diameter,as well as the incident wave height.