Abstract: In order to solve problem of low accuracy of lifting platform control system，design scheme of lifting platform control system was researched based on MCGS.PLC was used to control stepping motor，which could drive lifting platform to move up or down，and lifting distance measurement was determined by infrared distance sensor，main interface and motion parameter setting interface of lifting platform control system were designed to display motion process of lifting platform system，and real time monitoring and precise control were realized.Research of lifting platform control would provide design basis for motion experiment control system and provide new idea for lifting platform design of agricultural machinery.