The invention discloses a motor vehicle access control management method based on radio frequency identification under the Internet of Things, which is based on a system formed by five parts comprising an active RFID (radio frequency identification device) system, a wireless sensor network gateway, a movable terminal device, a campus vehicle information database, and terminal software. All vehicles passing in and out of the campus need to be provided with an active RFID tag; when the vehicles enter the scope of a reader arranged at a barrier gate, the reader receives the data transmitted from tag and controls whether to open the barrier gate or not after being connected with the campus motor vehicle information database for comparison through a terminal computer. Application tags for vehicles applied in the campus are long-term, and are uniformly applied by each division for the vehicles in each division; moreover, strict checking systems are implemented; details are stored in the vehicles database, and the data is valid for a long period of time; tags applied for temporary vehicles are short-term, and can be checked by a gateman on the spot; moreover, the basic information of the vehicles are written into the campus vehicle information database by the gateman; the data is valid for only one day, and the temporary tags are recycled when the vehicles run out of the campus.