PROBLEM TO BE SOLVED: To provide a seedling transplanting machine for solving problems in which an operator has to perform the on/off operation of drive of a working device and the coming-up/down operation of the working device in addition to the turning steering operation of a machine body during turning, and cannot devote oneself to the steering operation during turning, and yet, the problem is present in the turning operability.SOLUTION: The seedling transplanting machine is configured as follows: a sensor (205) for detecting a rotational speed of wheels is provided； a seedling transplant working device is made to come up and the calculation of a travel distance is started based on the detection of the sensor (205)； and the command for making the seedling transplant working device come down and the command for starting the drive of the seedling transplant working device are output according to the travel distance. The seedling transplanting machine performs automatic turning control in which a notification buzzer (B) is operated by a short sound during turning of a machine body, and the notification buzzer (B) is operated by a long sound when the command for starting the drive of the seedling transplant working device is output according to the travel distance.SELECTED DRAWING: Figure 6【課題】 苗移植機において、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】 車輪の回転数を検出するためのセンサ（２０５）を設け、苗移植作業装置を上昇させると共に前記センサ（２０５）の検出に基づく走行距離の算出を開始し、該走行距離に応じて、苗移植作業装置が下降する指令及び苗移植作業装置の駆動を開始する指令を出力する構成とし、機体旋回時は報知ブザー（Ｂ）を短音で作動させ、前記走行距離に応じて苗移植作業装置の駆動を開始する指令を出力するときは報知ブザー（Ｂ）を長音で作動させる自動旋回制御を行う。【選択図】 図６
