Based on the solving technique of explicit non-linear finite element method and the mechanism in ship-anti-collision equipment collision, this thesis recites the process of building a reasonable FEA model and develops numerical simulation to the collision process of a ship and an anti-collision equipment. On the basis of numerical simulation, some results, such as structural deformation and collision force in the collision region, the change in the kinetic energy of ship, the movement of the ship and so on, are achieved.