In the finite element calculation of high pile wharf,a structural section is usually selected for analysis and calculation,and the force transfer effect of jagged joints between structural sections is ignored,resulting in conservative calculation results,which is not conducive to the competition with international consulting and design companies in the current environment.Therefore,based on SAP2000 finite element calculation software,the horizontal linear spring element is introduced into the calculation model to simulate the horizontal constraint effect of the jagged joints,and the overall model is established to analyze and verify the effectiveness of the spring element.Finally,the curve of the horizontal linear spring stiffness changing with the increase of the number of structural sections is given,which provides a reference for the calculation of high pile wharf.The results show that the calculation errors of the internal forces of the horizontal linear spring element and the actual jagged joints are within a reasonable range,which verifies the effectiveness of the method.The equivalent lateral elasticity is introduced into the structural design calculation of high pile wharf,so an optimal design method of high pile structure is given.