Abstract: According to the requests of vehicle reliability information management, the system structure of a vehicle reliability data management and analysis system (VRDMAS) is put forward. Based on the reliability analysis software Relex and adopting database software SQL server 7.0 and development tool Delphi 6.0,the system is developed, and the functions of system management and analysis realized. It solves the problem that a database system is generally defective in analytical functions and the mechanical parts warehouse of the special reliability analysis software lacks in data. It is indicated by a practical example that VRDMAS not only has good function of reliability data management, but has its strong ability in reliability analysis as well which satisfies the practical requirements of vehicular reliability data management and analysis.