The machine is made up of vertical milling cutter,copy routing pole, copy routing plate, clamping device, operation pole, machine body, pneumatic system, electric system etc. Controlled by the operation pole, the copy routing feeler pole moves along the hole on the copy routing plate,and drives the cutter to mill.The feeler pole has the same diameter with the milling cutter, so the machine can mill in the scale of 1 : 1,which makes the hole groove as large as the hole in the copy routing plate.