The invention provides automatic edge cutting equipment for paperboard processing. The automatic edge cutting equipment comprises a base, a workbench, a mounting plate, an edge cutting mechanism, a first driving mechanism, a second driving mechanism, a third driving mechanism, a fourth driving mechanism, a fifth driving mechanism, a sixth driving mechanism, a monitor and a control mechanism, wherein a conveying roller group for conveying a paperboard is arranged between the material feeding end and the material discharging end of the workbench; the edge cutting mechanism comprises a mobile plate, a first edge cutter, a second edge cutter, a first supporting wheel and a second supporting wheel; the projection, on the base, of the first edge cutter is overlapped with the first supporting wheel; the projection, on the base, of the second edge cutter is overlapped with the second supporting wheel; the control mechanism is connected with and controls the actions of the first driving mechanism, the second driving mechanism, the third driving mechanism, the fourth driving mechanism, the fifth driving mechanism, the sixth driving mechanism and the monitor. The automatic edge cutting equipment is high in edge cutting precision and high in cutting speed; during processing, the automatic edge cutting equipment is high in processing efficiency.