PROBLEM TO BE SOLVED: To provide a paddy field work machine that can hardly cause rightward and leftward tilting or float-up of a ground float due to formation of a drain ditch.SOLUTION: A paddy field working machine includes one ground float 12 that is provided in a paddy field work device in the state of having a land-leveling action part 12d for working places where work is performed by a plurality of ground work parts. A ditch cutting part 71 for forming a drain ditch on a field surface is protrusively provided only in a part, which includes the center 12CL of the ground float in a lateral direction of a vehicle body, of a bottom surface of the ground float 12.COPYRIGHT: (C)2014,JPO&INPIT【課題】排水溝の形成に伴う接地フロートの左右傾動や浮き上がりを発生し難くできる水田作業機を提供する。【解決手段】複数の対地作業部による作業箇所に対する整地作用部12dを有した状態で水田作業装置に設けられた一つの接地フロート12を備えている。接地フロート12の底面のうちの車体横方向での接地フロート中心12CLを含む部位だけに、圃場面に排水溝を形成する溝切り部71を突設してある。【選択図】図8
