This machine is a horizontal grinding, cutting, polishing machine for the rock plate processing industry, which can process 44.5° beveled edges. The use of gold hacksaw blades for direct cutting and the use of resin grinding wheels and diamond grinding wheels allows the rock slabs to achieve a truly seamless splicing effect. Angle, thickness, speed parameter program control automatic adjustment, switching products is convenient and simple, the equipment is equivalent to more than 3 times the normal workload of ordinary processing equipment after production, and solves the previous small strip difficult to process and splicing seam has broken mouth production defects.