Based on the fixed wall thickness tower structure form of 200 m high-lift ship lift,the variable wall thickness tower structure form is proposed based on the principle of consistent concrete consumption.Using the finite element software ABAQUS,two kinds of tower structure models,fixed wall thickness and variable wall thickness,are established respectively,and the dynamic response of tower structure is compared and analyzed.The results show:1) Under the action of self-weight load,wind load and 8 degree earthquake,the maximum displacement of the fixed wall thickness column structure and the variable wall thickness column structure are 38.5 cm and 34.7 cm,respectively,which meet the specification limit.2) Under the action of three seismic waves,the top acceleration of the two columns are larger than the bottom acceleration,showing an acceleration amplification effect.They are amplified by 2 times approximately.3) The compressive stress concentration occurs at the interface between the raft foundation and the tower column structure,and the tensile stress concentration occurs in the left and right sides of the raft foundation,and in the middle part and the inner part of the cylinder.Stress concentration is likely to occur at the junction of the tower column and the retaining wall.4)The maximum displacement at the top of the variable wall thickness column structure,the maximum tensile and compressive stress of the raft foundation and the maximum equivalent stress of the section are much smaller than the fixed wall thickness.Therefore,the structure of the wall thickness column is better.