The invention discloses a managing system and a managing method for cellphone application in mobile lease and restitution of vehicle. The managing system comprises a cellphone terminal of an administrator, a server terminal and an information center data base. The managing method comprises the steps of: prestoring user information, vehicle information, and the like in the information center data base, receiving at least one kind of request information and at least one kind of user information sent from the cellphone terminal of the administrator by the server terminal, and returning corresponding execution result to the cellphone terminal of the administrator according to corresponding information data prestored in the information center data base, meanwhile, modifying corresponding information recorded in the information center data base at least according to partial execution result. According to the invention, a platform that can realize lease management of vehicle among multiple districts and multiple companies is established, vehicle lease, restitution and fee charging are realized more conveniently for clients, purposes of intensive management and full utilization of vehicles are achieved, and operating cost is reduced, the method of the invention further benefits resource saving and environmental protection.