Abstract: From the design point of view,through data calculation,a three-dimensional all-steel cable drum model for large-length,large-section ultra-high voltage cable transportation and construction is established. The drum model is designed with a large number of support structures. The finite element analysis software Ansys Workbench was used to analyze the force value of the all-steel drum,and the stress distribution of the all-steel drum under static load,hoisting and pay-off conditions was analyzed through simulation to explore whether the drum meets the target load requirements. If it meets the requirements,it is determined that the model design can be put into practice. If it doesn’t meet,we need to optimize the structure of its weakness and then perform numerical simulation analysis,and finally satisfy the requirements of ultra-high voltage cable engineering application with large length and large section.