A baking drum structure of the present invention has a closed drum body including at least two drums mutually communicated and arranged in a ring-sleeved manner. Each of the at least two drums is provided respectively with a spiral pick at the inner circumferential surface. The spiral directions of the spiral picks of the two adjacent drums are reversely arranged. Since the spiral directions of the spiral picks are opposite, objects to be baked can be moved reciprocally towards different directions, and be rotated and flipped simultaneously, so as to achieve a baking effect of being stirred fully and heated evenly.本發明的烘焙滾筒結構具有一呈封閉狀的滾筒本體，其包含有環套設置且相互連通的至少兩滾筒，該至少兩滾筒分別於內周面上設有一螺旋撥片，且兩相鄰的該滾筒的該螺旋撥片之螺旋方向呈反向設置，由於該些螺旋撥片的螺旋方向相反，因此可撥動待烘焙物朝向不同方向往復移動，並且同時旋轉翻動待烘焙物，藉此達到充分攪拌、均勻受熱的烘焙效果。
