PROBLEM TO BE SOLVED: To solve a problem that, in a sulky type rice transplanter, it is necessary for an operator to perform a switching operation of the drive of a working device and an ascending/descending operation of the working device in addition to a swirl steering operation of a machine body at a swirl, and cannot be dedicated to a steering operation at the swirl, thus causing a problem in terms of swirl operation performance.SOLUTION: A sulky type seedling transplanter in which a seedling transplanting work device is attached to a traveling vehicle so as to be liftable comprises a control device which outputs a command for lifting the seedling transplanting work device when a steering handle is steered at a prescribed angle or larger, preferentially outputs a command for descending the seedling transplanting work device by controlling it according to a traveling distance after the steering handle is steered at the prescribed angle or larger by traveling distance calculation means, and after that, performs automatic swirl control for descending a drawing marker.【課題】 乗用型田植機において、旋回時に、操縦者は機体の旋回操向操作以外に、作業装置の駆動の入り切り操作や作業装置の上昇・下降操作をしなければならず、旋回時の操向操作に専念できず、未だ、旋回操作性の点において課題があった。【解決手段】 走行車両に苗移植作業装置を昇降自在に装着した乗用型苗移植機において、ステアリングハンドルを所定角度以上操向すると苗移植作業装置を上昇させる指令を出力し、走行距離算出手段によるステアリングハンドルを所定角度以上操向してからの走行距離に応じて制御することにより、先ず苗移植作業装置が下降する指令を出力し、その後に線引きマーカを下降させる自動旋回制御を行う制御装置を設けた。【選択図】 図8
