This vertical circulation car parking system mainly consists of main steel structure, plate structure, transmission system, control system, and safety protection device. The main structure is internally provided with a fixed guide rail, the lifting chain roller runs in the guide rail, and the carriage plate is suspended on the extended plate of the lifting chain. During operation, the car is parked inside the carriage board, and the chain drive system drives the carriage board for circulation running in the vertical direction. When the carriage board runs to the lowest end, the vehicle can be accessed.