Abstract: A bevel cutting device for cutting a bevel in a workpiece includes a frame and a vertical cutting torch, disposed on the frame, for cutting a root face of the workpiece. At least one bevel cutting torch is provided for cutting a bevel in the workpiece. The bevel cutting torch is disposed in parallel with the vertical cutting torch in a plate-cutting direction. An inclining section is coupled to the frame and inclines the bevel cutting torch about an axis parallel to the plate-cutting direction. The inclining section includes a motor gear disposed inside a casing and a link mechanism driven by the motor gear. The link mechanism is coupled to the bevel cutting torch. A shifting section is coupled to the frame and shifts the inclining section in a direction perpendicular to the plate-cutting direction.