The offshore wind power infrastructure is often affected by ship collision. In order to reduce structural damage, a new type of single-pile offshore wind power infrastructure anti-collision equipment is designed and its ultimate performance strength is analyzed. The nonlinear finite element analysis method is used to simulate the collision process of single pile anti-collision equipment with different ship mass and docking speed. In this study, the collision response of single pile anti-collision equipment under different working conditions is simulated by finite element analysis, the maximum collision energy that anti-collision equipment can bear is determined, the relationship between collision force and ship mass and docking speed is studied, and the collision force and plastic strain are analyzed. The research results show that the designed single-pile anti-collision equipment can reduce foundation damage and has good anti-collision performance.