PROBLEM TO BE SOLVED: To improve the leveling performance of a leveling device in a paddy field working machine equipped with the leveling device. SOLUTION: A ground leveling device 23 arranged between a work device supported at the rear part of the machine body and a rear wheel of the machine body in a side view is provided with a drive shaft 48 supported so as to be rotationally driveable along a left-right direction. Be done. A plurality of ground leveling bodies 53 are provided which are attached to the drive shaft 48 so as to line up along the longitudinal direction of the drive shaft 48 and are rotationally driven integrally with the drive shaft 48 to level the ground surface. It is rotatably attached to a predetermined position in the longitudinal direction of the drive shaft 48 together with the drive shaft 48 to determine the position of the ground leveling body 53 on the drive shaft 48, and uneven ground leveling portions 67a and 67b are formed on the outer surface. The spacers 67 and 68 are provided. [Selection diagram] Fig. 6【課題】整地装置を装備した水田作業機において、整地装置の整地性能を向上させる。【解決手段】側面視で機体の後部に支持された作業装置と機体の後輪との間に配置された整地装置２３に、左右方向に沿って回転駆動可能に支持された駆動軸４８が備えられる。駆動軸４８の長手方向に沿って並ぶように駆動軸４８に取り付けられて、駆動軸４８と一体で回転駆動されることにより田面を整地する複数の整地体５３が備えられる。駆動軸４８の長手方向の所定位置に駆動軸４８と一体で回転可能に取り付けられて、駆動軸４８での整地体５３の位置を決め、且つ、外面に凹凸状の整地部６７ａ，６７ｂが形成されたスペーサ６７，６８が備えられる。【選択図】図６
