PROBLEM TO BE SOLVED: To provide a combine equipped with an culm processing device which improves the feeding function of culm and has enhanced cutting processing capability. SOLUTION: A shredding device 7 for treating culm is provided at a lower rear portion of a threshing device 3, and the shredding device 7 is provided with a space in the axial direction of a chopper shaft 711 to which rotational power from a drive source is transmitted. A plurality of cutting blades 712 arranged in a spiral shape, and a plurality of disc blades 722 arranged in parallel with the chopper shaft 711 and arranged at intervals in the axial direction of a free rotating shaft 721 that freely rotates. Then, the culms are cut between the cutting blades 712 and the disc blades 722 arranged alternately. [Selection diagram] FIG.【課題】排稈の送り作用を向上させて切断処理能力を高めた排稈処理装置を備えるコンバインを提供する。【解決手段】脱穀装置3の後方下部で排稈を処理する細断装置7を備え、細断装置7は、駆動源からの回転動力が伝達されるチョッパ軸711の軸線方向に間隔を設けて螺旋状に配置された複数の切断刃712と、チョッパ軸711と平行に配置されて自由回転する自由回転軸721の軸線方向に間隔を設けて配置された複数の円板刃722と、を有し、交互に配列された切断刃712と円板刃722との間で排稈を切断する。【選択図】図5