The invention discloses a full-automatic potato perforating machine which comprises a feeding device, a perforating device body, a transmission device and a discharging trough. The feeding device cancontain and convey potato raw materials, and the potato raw materials on the feeding device can be perforated through the perforating device. The feeding device and the perforating device are connected with the transmission device, and the transmission device can drive the feeding device and the perforating device to synchronously move in opposite directions. The full-automatic potato perforatingmachine is high in automation degree, high in safety and production efficiency, accurate in transmission and high in adaptability. According to a making method, potatoes can be tasty from outside to inside and from inside to outside in the processing process, the tasty effect is good, and meanwhile the appearances of the potatoes are kept. The inner structures of the potatoes can be loose and beneficial to be tasty through quick freezing, the stewing taste can permeate into the potatoes fast through vacuum roll kneading, and production time is saved; and continuous production can be achieved,a large amount of manpower is saved, production efficiency is high, and production is stable.