PROBLEM TO BE SOLVED: To provide a transplanter for preventing contact with an obstacle or a worker on a course of a machine body or automatically stopping movement according to the condition of the machine body. SOLUTION: The left and right traveling devices 44 for traveling in a field on a traveling vehicle body 40, a planting device 42 for planting seedlings in a field, a drive device 41 for generating a driving force, and a driving device 44 for driving force of the drive device 41. In a transplanter equipped with a mission mechanism 39 that transmits power to the planting device 42, a transmission on/off member 200a that turns on/off the transmission from the mission mechanism 39 to the traveling device 44 and the planting device 42 is provided. Obstacle detection members 401, 405, 408 for detecting obstacles are provided, and when the obstacle detection members 401, 405, 408 are in the detection state, the transmission on/off member 200a is operated to operate the traveling device 44 and the planting device 42. A control device 100 for stopping the transmission is provided and configured. [Selection diagram]【課題】 機体の進路上の障害物や作業者との接触防止、あるいは機体の状況に合わせて移動の停止を自動的に行う移植機を提供すること。【解決手段】 走行車体40に圃場を走行する左右の走行装置44と、苗を圃場に植え付ける植付装置42と、駆動力を発生させる駆動装置41と、駆動装置41の駆動力を走行装置44と植付装置42に伝動するミッション機構39を備える移植機において、ミッション機構39から走行装置44及び植付装置42への伝動を入切する伝動入切部材200aを設け、走行車体40の周囲の障害物を検知する障害物検知部材401,405,408を設け、障害物検知部材401,405,408が検知状態になると伝動入切部材200aを作動させて走行装置44及び植付装置42への伝動を停止させる制御装置100を設けて構成する。【選択図】 図20