The utility model relates to a carton production technical field's equipment, the name is carton material board joint cutter, including the joint cutter body, quick -witted body has ejection of compact track at the back, and the joint cutter body is connected with controlling means ejection of compact track in the middle of install the indentation bottom plate, at track side -mounting shelf, installation indentation device on the shelf, indentation pressure head be facing to the indentation bottom plate, indentation device connection control device, such carton material board joint cutter combines joint -cutting, indentation together, has reduction in production cost, shortens operation's advantage.