Abstract: In order to solve the problems in bogie assembly manufacturing, considering the whole process of bogie assembly manufacturing, the digital bogie assembly simulation platform covering virtual assembly line modeling, assembly process planning, assembly process simulation and assembly line logistics simulation was constructed by using Delmia simulation modules and PPR. The frame composition, implementation process, simulation and analysis method of digital simulation platform are described. The simulation platform can be used to simulate the whole process of bogie assembly manufacturing, and realize the pre-planning, verification and optimization of the whole process of bogie assembly manufacturing, which can shorten the manufacturing cycle and reduce the manufacturing cost.