Abstract: To ensure the safe operation of Electric Multiple Units(EMU) and achieve timely transmission of train crew data on and off the train, this paper designed and implemented a EMU crew management system based on train ground collaboration technology, introduced the architecture, functions, and key technologies of the system. Through the application mode of multiple terminals, the paper adapted to the diverse characteristics of EMU crew operation scenarios, transmitted real-time EMU related data to the ground, and pushed EMU warning information to the on-board mechanic, thereby ensuring the safety of EMU operation, and enhancing the intelligence level of on-board mechanics' crew operations.