Abstract: The EMU technology change information management system mainly studies the whole life cycle service management mode of EMU technology change projects, such as quality improvement at the source, to meet the information management requirements of China Railway, EMU Technology Center, Railway Administration Group Company, construction enterprises, supervision and acceptance departments for quality at source and other technology change projects. In the process of system design, the technology of EMU renovation implementation plan forecasting application and sharing platform data interaction were mainly adopted. By using this system, the quality renovation project at the source of the whole EMU headstream from 2012 to 2018 was managed, and the goal of standardizing process control, improving operation efficiency and serving on-site management was achieved.