PROBLEM TO BE SOLVED: To perform a trajectory control of a harvesting work machine in order to allow a harvesting work machine for post-processing to steer the harvested product which is harvested by the harvesting work machine and left in the field so as to access the harvested work machine. Provided is a harvesting machine that can attach a mark to the surface of a field. SOLUTION: A harvesting machine such as a grass collector is provided with a marking device 5 for attaching a mark 20 to the ground surface of a field. As a result, a harvesting work implement, such as a roll baler, which will be used later, detects the mark 20 and enables the steering control by the mark 20. [Selection diagram] Figure 2【課題】収穫作業機が収穫し圃場に放置された収穫物に対し、後処理する収穫物処理作業機が、該収穫物にアクセスできるように操向制御するため、収穫作業機の進行軌跡を表すマークを圃場の地表面に付すことができる収穫作業機を提供する。【解決手段】集草機等の収穫作業機に、マーク２０を圃場の地表面に付すマーキング装置５を設ける。これにより、後に作業を行うロールベーラ等の収穫物処理作業機が、マーク２０を検出し、マーク２０により操向制御が可能になる。【選択図】図２
