PROBLEM TO BE SOLVED: To avoid such a situation that a ground leveling device pushes mud when a ground working device (rear side) and the ground leveling device (front side) are arranged at a rear of a machine body.SOLUTION: A paddy field working machine comprises: a first lift mechanism which lift-drives a ground working device 5 a first height sensor 9 which detects a height of the ground working device 5 to a paddy field G and first control means which operates the first lift mechanism so that the ground working device 5 is maintained at a set height from the paddy field G on the basis of a detection value of the first height sensor 9. The paddy field working machine also comprises: a second lift mechanism 56 which lift-drives a ground device 53 a second height sensor 94 which detects a height of the ground device 53 to the paddy field G and second control means which operates the second lift mechanism 56 so that the ground device 53 is maintained at a set height from the paddy field G on the basis of a detection value of the second height sensor 94.COPYRIGHT: (C)2014,JPO&INPIT【課題】機体の後部に対地作業装置(後側)及び整地装置(前側)を備えた場合、整地装置が泥を押してしまうような状態を避ける。【解決手段】対地作業装置5を昇降駆動する第1昇降機構と、田面Gに対する対地作業装置5の高さを検出する第1高さセンサー9と、第1高さセンサー9の検出値に基づいて対地作業装置5が田面Gから設定高さに維持されるように第1昇降機構を作動させる第1制御手段を備える。整地装置53を昇降駆動する第2昇降機構56と、田面Gに対する整地装置53の高さを検出する第2高さセンサー94と、第2高さセンサー94の検出値に基づいて整地装置53が田面Gから設定高さに維持されるように第2昇降機構56を作動させる第2制御手段を備える。【選択図】図2
