PROBLEM TO BE SOLVED: To provide a threshing machine that efficiently prevents a grain from being stuck into a grain culm and includes a sticking prevention body having a function of avoiding straw jamming and excellent durability, the threshing machine including a threshing cylinder arranged rotatably in the threshing chamber and a threshing port for inserting an ear tip side of a reaped grain culm into a threshing chamber so as to be conveyed in a direction along a rotation axis direction.SOLUTION: The threshing machine includes: a threshing cylinder 10 arranged rotatably in a threshing chamber 2 and a threshing port 14 formed in a lateral side wall of the threshing chamber 2 and inserting an ear tip side of a reaped grain culm into a threshing chamber 2 so as to be conveyed in a direction along a rotation axis of the threshing cylinder 10. A sticking prevention body 30 is arranged on an inner side of the threshing port 14 in the threshing chamber 2, the sticking prevention body receiving a threshed product scattered in the threshing chamber 2 above the reaped grain culm inserted into the threshing chamber 2 so as to be made to flow on the threshing cylinder 10 side. The threshing machine includes a backing plate 35 supporting a base end side part of the sticking prevention body 30 on the lateral side wall.SELECTED DRAWING: Figure 4
