Gearbox is the core component of high-speed EMU power bogie,its performance directly affects the safety and reliability of operation.The structure and installation of the gearbox of high-speed EMU in domestic was introduced.According to the structure of the gearbox,the research status and existing problems of the gearbox design method of the high-speed EMU at home and abroad were described from the aspects of gear,bracket,box,lubrication and sealing.It was proposed that the research should focus on the shape design,fault diagnosis and health management of the gearbox and the product performance in extreme environment.It provides reference for the indepth study of highspeed EMU gearbox.