This study aimed to improve the automation-degree of action adjustment of slab feeding system in edge banding machine, and to ensure the efficient and real-time of the system operation. Through a study of action required of slab feeding system in edge banding machine and the programming of PLC control system, the operation sequence control of motors in feeding system was achieve. An automatically control was achieved during the work processes of slab feeding system in edge banding machine, which improved the production efficiency. The controlling of feeding system based on PLC has stable and reliable operation, high degree of automation, and certain economic value.