PROBLEM TO BE SOLVED: To provide a working vehicle capable of smoothly conducting farm work without causing such situations as the cloggings and/or damage of a ditching machine due to the machine body's backward movement even in case of forgetting the raising operation of a working apparatus such as a seedling planting part or seeder set up liftably.SOLUTION: A seedling transplanter is provided, being such that the working vehicle is mounted with: a link mechanism liftably supporting a working apparatus 4 and its lift position-sensing member； a granule feeder 5 for feeding granules to the ditching machine equipped in the working apparatus 4； a traveling control lever 73 conducting vehicle speed selection in the vehicle's forward/backward movement and the supporting height regulation of the link mechanism and the lever's traveling control-sensing member 73S； a rear wheel rotation-sensing member； an informative member 71； and an information-halting switch 72 laid on the working apparatus 4. In this seeding transplanter, such a control mechanism is constructed that, when all of the three conditions, i.e. the link mechanism is at a defined height or lower, the traveling control lever 73 is at backward movement vehicle speed position, and the rear wheel 11 is under rotation, are met, the informative member 71 is operated until operating the information-halting switch 72.【課題】昇降可能に装架した苗植付部や播種機等の作業装置の上昇操作を忘れた場合においても、機体後進による作溝機の詰まりや破損等の事態を招くことなく、圃場作業を円滑に進めることができる作業車両を提供する。【解決手段】苗移植機は、作業装置４を昇降自在に支持するリンク機構およびその昇降位置検知部材と、作業装置４に設けた作溝器に粒状体を供給する粒状体供給装置５と、前後進の車速選択とリンク機構の支持高さ調節とを行う走行操作レバー７３およびその走行操作検知部材７３Ｓと、後輪回転検知部材と、報知部材７１と、作業装置４に配置された報知停止スイッチ７２とを走行車体に備えて構成され、リンク機構が所定高さ以下、走行操作レバー７３が後進車速位置、後輪１１が回転の３条件全てに該当した時に、報知停止スイッチ７２の操作まで報知部材７１を作動する制御を構成したものである。【選択図】図１
