To build anintelligent vehicle system of Shenzhen Metrobased on “IntelligentTrain，IntelligentMonitoring and IntelligentOverhaul”，relying on train-ground wireless transmission technology，cloud platform，big data mining，intelligent overhaul equipment and so on，it achievesreal-time online diagnosis and fault alarm，fault trend forecast，maintenance management of total life-cycle for components，mechanized maintenance. And fusing the transdisciplinary operation and maintenance data of EAM system，signaling，tunneling and the others of our companywill achieve the big data management.