The maximum load of the main cage in the setting condition was obtained through analyzing the load of cigarette distribution in the main and auxiliary cage car transportation mode by ADAMS analysis software. Based on it, the stress and deformation of the main cage were calculated through the finite element analysis software. The result showed both stiffness and strength of the current cage could be re-designed to achieve weight reduction. According to the national standard, the tube wall thickness was reduced with the subsequent analysis of the stress and deformation. The lightweight design of cage car could not only meet the current cigarette distribution requirements, but also reduce manufacturing cost and unladen weight in the transportation process, which could effectively improve the transport efficiency and reduce energy consumption.