PROBLEM TO BE SOLVED: To provide a combine harvester capable of disposing an operation lever for operating a device located behind a driving seat, in a rear part of the driving seat advantageously in a structural aspect and cost performance.SOLUTION: The combine harvester is composed of an operation lever 50 having a boss part 51 externally fitting to be relatively rotatable with an input axis 34 provided in a transmission case 33 disposed behind the driving seat so as to transmit driving force from an engine to a threshing device 6 and a lever body 52 extending to be integrally rotatable from the boss part 51.COPYRIGHT: (C)2013,JPO&INPIT【課題】運転座席の後方に位置する装置を操作する操作レバーを運転座席の後方に構造面やコスト面で有利に配備することができるコンバインを提供する。【解決手段】エンジンからの駆動力を脱穀装置6に伝達するよう運転座席の後方に配備した伝動ケース33が備える入力軸34に相対回転自在に外嵌するボス部51、及びボス部51から一体回転自在に延出するレバー本体52を備えて、操作レバー50を構成してある。【選択図】図6