The number of urban vehicles is increasing, and vehicle management has always been an important part of urban transportation. RFID technology implements effective management of vehicles, and quickly and automatically recognizes the identity of vehicles, which has become an important means of vehicle management. The intelligent electronic license plate combines the characteristics of automatic identification and collection of ordinary license plates and RFID technology, which can realize wireless, long-distance and high-speed identification of vehicle license plates, and the global unique ID number of RFID electronic tags has functions such as anti-spoofing and anti-theft. RFID technology helps build "smart transportation" and "smart city" Intelligent electronic license plate is a combination of ordinary electronic license plate and RFID electronic tag. The RFID electronic tag is associated with the ordinary license plate number. After reading the RFID electronic tag information through wireless remote mode, the vehicle license plate number and other detailed information of the vehicle and the owner can be obtained . RFID technology helps build "smart transportation" RFID electronic license plate system function 1. Vehicle information management: Use fixed or mobile devices to identify and determine vehicle-related information, and determine vehicle fake decks, annual inspections, exhaust, traffic compulsory insurance and other information. 2. Customs and electronic gate management: port terminal electronic gate system, automatic customs clearance management, etc. 3. Electronic toll management: road and bridge toll management, expressway non-stop toll management, parking lot toll management, etc. 4. Traffic status management: BRT dispatch system, road traffic flow monitoring system, etc. Electronic license plates are the best choice for realizing high-speed automatic toll collection. The electronic license plate is equipped with an RFID electronic tag on a motor vehicle as a carrier of vehicle information. When passing through a road section equipped with an authorized radio frequency identification reader, the reader collects the data on the electronic license plate of each motor vehicle Or write to achieve the purpose of all kinds of integrated traffic management. This is an application based on the technical characteristics of RFID high-precision identification, high-accuracy collection, and high-sensitivity, and it can realize that the vehicle can directly pass the toll gate and complete the payment without stopping without slowing down. RFID electronic license plate is the combination of ordinary license plate and RFID technology to form a new type of electronic license plate. The electronic license plate stores encrypted vehicle-related information through a wireless identification electronic tag. As an emerging non-contact automatic recognition technology, RFID technology has higher recognition accuracy than video and image processing license plate recognition, is not easily affected by the external environment, has no blind spots, and can accurately and comprehensively obtain a single vehicle Status information.