"Automatic detection system for vehicle identity" (national patent ZL200710166583.5), is based on radio frequency identification (RFID) technology, image recognition technology, large-scale database technology. In an accurate, fast, efficient, automated premise, the automatic detecting system identify the true identity of a motor vehicle, and find inconsistence with the true identity of the motor vehicle ( including fake cards,decks, altered license plate, without inspection, scrap vehicles, etc.), or find other identity-related violations(including escape purchase tax, travel tax, insurance, management fees and operating vehicles management fees and "yellow car" , etc.). On the inspection mode, the original "must check every car" model is changed into "problematic vehicle check" inspection mode. This system can greatly improve public security, the level of traffic management; strengthen the construction of terrorism prevention and control system and stability maintenance system. And it could also greatly reduce vehicle exhaust discharge to improve transportation and social security and achieve social management innovation.