To properly perform ground leveling in a paddy field working machine. SOLUTION: The ground leveling section 9, 71 capable of ascending and descending is provided with a ground leveling position grounded on the field surface and a non-grounded position rising upward from the field surface. A positioning unit 30 that detects the position of the traveling vehicle body 50, and a work traveling line acquiring unit that acquires a work traveling line. A discriminating portion for discriminating non-working traveling which causes the traveling machine body to travel with the working device 5 in a stopped state, and a control portion for lowering the ground leveling portions 9, 71 to a grounded position if it is non-working traveling. BACKGROUND OF THE INVENTION【課題】水田作業機において、田面の整地が適切に行われるようにする。【解決手段】田面に接地して整地する整地位置及び田面から上方に上昇した非整地位置に昇降自在な整地部9,71を備える。走行機体50の位置を検出する測位部30と、作業走行ラインを取得する作業走行ライン取得部とを備える。作業装置5を停止状態として走行機体を走行させる非作業走行を判別する判別部と、非作業走行であると整地部9,71を整地位置に下降させる制御部とを備える。【選択図】図1
