PROBLEM TO BE SOLVED: To provide a combine capable of preventing interference between a floor and a battery and arranging a large capacity battery in a space formed under the floor. SOLUTION: A battery 18 is arranged in a space formed under a floor 13 of a control unit, and a notch portion is formed in a portion of the floor 13 facing the battery 18 in a plan view, and the cut portion is formed on the floor 13. A left opening and a right opening are formed on both sides of the notch in the left-right direction, and a removable cover is provided to cover the upper part of the notch. The covers are the upper plate 21 on which the operator rests his / her feet and the upper part. The left side plate and the right side plate 23 provided on both sides of the lower surface of the plate 21 in the left-right direction, and the left engaging body provided on the lower surface of the upper plate 21 on the right side of the left side plate and the left side of the right side plate 23 are provided. The right engaging portion 25B is provided, the left engaging body is engaged with the left opening, the right engaging body 25B is engaged with the right opening, the upper plate 21 is in the rearward downward posture, and the cover is placed on the notch. It was configured to be installed. [Selection diagram] FIG. 12【課題】フロアとバッテリの干渉を防止して、フロアの下側に形成された空間に大容量のバッテリを配設できるコンバインの提供。【解決手段】操縦部のフロア13の下側に形成された空間にバッテリ18を配設し、平面視において、フロア13におけるバッテリ18に対向する部位に切欠き部を形成し、フロア13における切欠き部の左右方向の両側の部位に左開口部と右開口部を形成し、切欠き部の上方を覆う着脱自在なカバーを設け、カバーは、操縦者が足を載せる上板21と、上板21の下面の左右方向の両側部に設けられた左側板及び右側板23と、上板21の下面における左側板よりも右側に設けられた左係合体と右側板23よりも左側に設けられた右係合部25Bを備え、左係合体を左開口部に係合させ、右係合体25Bを右開口部に係合させ、上板21を後下がり姿勢にしてカバーを切欠き部上に装着する構成とした。【選択図】図12