Vehicle Informational Management System is applicable to 'vehicle maintenance operation management', 'vehicle maintenance operation management' and 'crew operation management' in various rail transit depots. Each module realizes the comprehensive management of vehicle maintenance process and vehicle status together. The system can collect the status, phenomenon and detection data in the maintenance process in real time to form a data center, quality tracing and fault diagnosis system, and realize the intelligent management of the maintenance process and vehicle status. So as to improve the maintenance quality and efficiency, reduce the failure rate and reduce the management cost.