Objective To improve the edging efficiency of CNC Edge Banding Machine and to ensure the edging quality, the structure of the slab feeding system of CNC Edge Banding Machine was designed. Methods Through the working process analysis of CNC Edge Banding Machine, the structure and layout of the slab feeding system of Edge Banding Machine were determined, and three-dimensional modeling was conducted for the slab feeding system of Edge Banding Machine using SolidWorks software. Results The parametric design of rack, lifting frame, width adjustment mechanism, in and out feeding mechanism and the unilateral feeding device was completed, which were constituted for slab feeding system of CNC Edge Banding Machine. Conclusion The Slab feeding system of CNC Edge Banding Machine could transport slabs with a width of 240 mm~3300 mm and a thickness of 10~60mm, with a feeding speed of 12~20 m/min, and the Edge banding showed high stability and high efficiency, which greatly improved the performance of CNC Edge Banding Machine.