PROBLEM TO BE SOLVED: To provide a combine harvester that facilitates maintenance operations.SOLUTION: A combine harvester includes: a reaping unit that conveys planted grain culms backward by reaping them a driving engine 7 that is positioned in a location to one side in a width direction of a machine body a reaping input shaft 103 that is elongated along the width direction of the machine body and a transmission mechanism 104 for input, which transmits power from the engine 7 to a location, on the other side in the width direction of the machine body, of the reaping input shaft 103.COPYRIGHT: (C)2014,JPO&INPIT【課題】メンテナンス作業が行い易いコンバインを提供する。【解決手段】植立穀稈を刈り取って後方に搬送する刈取部と、機体横幅方向一方側寄りの箇所に位置する駆動用のエンジン7と、機体横幅方向に沿って延びる刈取入力軸103と、エンジン7からの動力を刈取入力軸103における機体横幅方向他方側箇所に伝達する入力用伝動機構104とが備えられている。【選択図】図6