< Topic >With the installation removal of the storage sack as easy, offer the riding harvester which can raise the harvest efficiency of the farm products.SolutionsAs for riding harvester 1, the person embarking to cockpit 25, the harvester vehicle 2 run, the ascent and descent boom 21 which is provided in front F of harvester vehicle 2, the reaping blade unit 6 which possesses the reaping blade 61 which mows farm products 8, and reaping blade unit 6 it has the installation bracket 3 which installation and removal possibly is installed for ascent and descent boom 21. Installation bracket 3, when going back harvester vehicle 2, with the direction which mows the farm products 8 which pass the space S for harvest with reaping blade 61, has had the structure which installs reaping blade unit 6 in ascent and descent boom 21.< Choice figure >Drawing 1【課題】収容袋の取付け・取外しを容易にして、農作物の収穫効率を高めることができる乗用収穫機を提供すること。【解決手段】乗用収穫機1は、操縦席25に人が搭乗して走行する収穫機車両2、収穫機車両2の前方Fに設けられた昇降ブーム21、農作物8を刈り取る刈取刃61を有する刈取刃ユニット6、及び刈取刃ユニット6を昇降ブーム21に着脱可能に取り付ける取付ブラケット3を備えている。取付ブラケット3は、収穫機車両2を後退させるときに収穫用空間Sを通過した農作物8を刈取刃61によって刈り取る向きで、刈取刃ユニット6を昇降ブーム21に取り付ける構造を有している。【選択図】図1