The method of fluid-solid coupling three-dimensional numerical model combined with advanced GPU computing technology, provides a breakthrough calculation method for the simulation analysis on the interaction between waves and hydraulic structures, which overcomes the shortcomings of the existing mathematical model for continuous medium, and can solve many problems that used to be solved only by wave physical models.The model mentioned has several advantages such as convenient boundary change, low cost, fast analysis speed, etc.,which can meet the scientific requirements for several design schemes, therefore this model has a broad application prospect in engineering fields.