To provide a combine capable of preventing contact of a second reaping blade support mechanism and a second reaping blade drive part to a levee in reaping work on a levee edge, for preventing breakage.SOLUTION: A combine comprises a thresher on a machine body frame which is provided on an upper side of a travel unit, a reaping device is provided on a front part of the thresher through a transport elevator 17, the reaping device is configured so that, a reel, a first reaping blade, and an auger are provided on an auger frame formed of right/left side plates, a bottom plate and a rear plate, a rear part of the rear plate has a second reaping blade 20, and the second reaping blade 20 is attached to a lower part of the second reaping blade support mechanism 25. On inside of the second reaping blade 20 on the second reaping blade support mechanism 25 in a reaping width direction, a second reaping blade drive part 29 for transmitting driven rotation to the second reaping blade 20 is provided. On outside of the second reaping blade 20 on the second reaping blade support mechanism 25 in the reaping width direction, a second reaping blade reaping height detection part 40 for detecting a reaping height position of the second reaping blade 20 is provided.SELECTED DRAWING: Figure 2【課題】畦際の刈取作業中に第二刈刃支持機構および第二刈刃駆動部が畦畔に接触するのを防止して破損を防止できるコンバインを提供する。【解決手段】走行装置の上側に備える機体フレーム上に脱穀装置を設け、脱穀装置の前方に搬送エレベーター17を介して刈取装置を設け、刈取装置を、左右の側板と底板と後板とにより構成したオーガーフレームに、リールと第一刈刃とオーガとを設けた構成とし、後板の後方には第二刈刃20を設け、第二刈刃20は第二刈刃支持機構25の下部に取付け、第二刈刃支持機構25における第二刈刃20の刈幅方向の内側に第二刈刃20に駆動回転を伝達する第二刈刃駆動部29を設け、第二刈刃支持機構25における第二刈刃20の刈幅方向の外側に第二刈刃20の刈高さ位置を検出する第二刈刃刈高さ検出部40を設けた。【選択図】図2