The invention discloses an internet of vehicles-based car periodic leasing system and method. The leasing system comprises intelligent vehicle-mounted equipment, a handheld terminal APP, a periodic leasing remote management control center and a vehicle, wherein the intelligent vehicle-mounted equipment is arranged on the vehicle and is connected with the vehicle, the periodic leasing remote management control center and the handheld terminal APP, the periodic leasing remote management control center is connected with the intelligent vehicle-mounted equipment and the handheld terminal APP through an internet, and the vehicle and the intelligent vehicle-mounted equipment are in communication connection through a vehicle-mounted bus. By the leasing system and a leasing and vehicle management method, the problems of car leasing and returning, car seeking, vehicle identification designed user opening, real-time monitoring of an enterprise, leasing vehicle management, leasing user warning and monitoring and the like of the user on the handheld terminal are solved; by automatic flow-type leasing, actions of car seeking, car driving, vehicle starting and the like of the user are facilitated, other devices are not needed to be additionally arranged, and the safety and the convenience are ensured; and meanwhile, the management of the enterprise on the vehicle is more timely and thorough.