It is still necessary to study whether fender should be installed between fender pile and wharf and the calculation method of fender pile with fender in front of berth pile. In this paper，Abaqus finite element analysis software is used to analyze the steel fender pile with fender on both sides. It is believed that the fender pile can be analyzed by p-y curve method，and the inner fender is analyzed by nonlinear spring. The optimal design of the fender pile is carried out by engineering examples combined with an engineering example. The results show that the inner fender is helpful to reduce the internal force of fender pile. The steel tube pile is made of high strength steel，and the local strengthening of steel tube pile can significantly improve the performance of fender pile.