In recent years, with the increasing maturity of technology, intelligent devices emerge in endlessly in the field of access control. In the field of entrance and exit control, the goal is to ensure the parking safety of car owners, improve the travel efficiency of car owners and improve the service quality of major parking lots. According to the market demand, taigewang technology has developed an intelligent parking lot system. Through the characteristics of automatic capture, dynamic feature detection and fine picture correction, the vehicles in and out of the parking lot pass without stopping, the charging amount is clearly displayed and the pole is lifted out quickly, which effectively improves the charging efficiency and exit speed. The case of taigewang technology project shows the parking lot system project of Xinghai Convention and Exhibition Center in Dalian, Liaoning Province, and the license plate recognition parking lot system project of Huizhou drainage center in Guangdong Province. It wants to improve the service and overall external image of the parking lot, create a modern, humanized and standardized management service concept, and provide faster and safer parking services for vehicles entering and leaving the parking lot, Implement scientific, standardized and digital management of all vehicles entering and leaving the parking lot to show the dignity of parking lot users. Using advanced intelligent parking system is the best choice for parking management. The proper management of the parking lot has a great impact on the shaping of the overall image. The stability of the parking lot order can not only bring great convenience to car owners, but also bring more economic benefits to the parking lot.