The invention discloses an automatic paperboard marking press. The automatic paperboard marking press comprises a marking press body; a third protective cover is mounted on one side of the marking press body; a first motor is mounted in the third protective cover; a first rotating shaft is mounted on one side of the first motor; a belt wheel is mounted on the first rotating shaft; a belt is mounted on one side of the belt wheel; a paperboard conveying wheel is mounted on one side of the first rotating shaft; a first protective cover is mounted on one side of the marking press body; a second motor is mounted in the first protective cover; and a third rotating shaft is mounted on one side of the second motor. A paperboard conveying mechanism is provided for accelerating the paperboard marking speed to improve the machining efficiency; and a rocking rod mechanism is provided for quickly deviating paperboards from the lower side of a pressing wheel when the paperboards are blocked on the pressing wheel, so that the marking press is protected, and the burnout problem of the second motor caused by longer time of blockage of the pressing wheel by the paperboards is prevented.