As we all know, parking lot system is an effective measure to solve the entrance and exit of important places and realize safety management. Applicable to a variety of places, such as communities, shopping malls, hotels, industrial parks, government units, group properties, logistics parks, etc. What kind of management role does the parking lot system play in the application of intelligent transportation? At present, the problem of traffic congestion has become a common problem in all cities, and the problem of parking is a headache for almost everyone, especially during rush hours or holidays. There is no doubt that the increase of vehicles will become the core reason for the problem of parking. In addition, the parking lot is poorly managed and backward equipment, It causes people to worry about parking every time they go out. In order to solve the problem of difficult parking, many manufacturers also make great efforts in the functions of the parking lot system. The payment from the entrance and exit management to the exit of the parking lot can be simplified as much as possible. It can not only realize non-stop access for fixed vehicles, but also realize non-stop access for temporary vehicles through license plate recognition technology, This technology brings great convenience to the parking lot management. At present, the parking lot system adopts Internet technology, which can realize the reservation of parking spaces. Before the owner goes out, the parking spaces can be reserved according to his own itinerary. At the same time, the system will push a parking route to the owner, and grasp the use of parking spaces in the parking lot in real time through data transmission between systems, which is more conducive to the management between parking lots. In order to solve the parking problem to the greatest extent, government departments call on people to improve the utilization of parking spaces in the parking lot through intelligent parking equipment, and provide people with a good parking environment as much as possible through the functions of parking space reservation, license plate recognition, parking space guidance, reverse car search, self-service payment and so on.