Wall decoration plate cutting device

The invention relates to the technical field of decorative plate processing, in particular to a wall decorative plate cutting device which comprises a mounting plate, a driving part is fixedly mounted on the upper surface of the mounting plate, a main shaft is rotatably connected to the mounting plate, the main shaft is vertically arranged and is in transmission connection with the driving part, and a cutting milling cutter is mounted at the lower end, penetrating through the mounting plate, of the main shaft. And the outer side of the cutting milling cutter is sleeved with a chamfering cutter head. The chamfering cutter head is driven to synchronously rotate while the cutting milling cutter rotates, in this way, the wall decoration plate can be cut through the cutting milling cutter, and trimming, chamfering and deburring can be conducted on a notch of the wall decoration plate through the chamfering cutter head while the wall decoration plate is cut; the cutting precision of the wall decoration plate is imp