An automatic roasting machine including feed, heating, stir fry, separation and shipping was designed. Our designs covered the overall roasting machine, the automatic temperature control system and the key components of stir fry spiral pages as well. Moreover, the prototype tests showed that the automatic roasting machine designed by us could work with stable quality, high degree of automation, and precise temperature control. The timely cook and sell functions have been achieved. As a result of the barrel automatic separation technology, making full use of preheat and the shortening of the heating time, our designed products are suitable for continuous production.