An up-down and translation stereo garage automatic control system is designed. The accurate location control of up-down and translation is realized through PLC technology and motor frequency conversion technology. Real-time monitor, data management and long-distance control for the working site equipment are carried out by the communication between PLC and upper computer through MCGS configuration software technology. The system is very stable, reliable and has strong adaptability and high performance-price-ratio. Therefore, it will have a wide application in the future.