To suppress the whole length (length from the front end of a machine body to the rear end of a work device) of a paddy field implement, concerning a paddy field implement in which a soil preparation device is arranged between the work device and the machine body.SOLUTION: In a lowered state of a linkage for supporting a soil preparation device 26, in a side view, the front end K11 of a rotational locus K1 on the outer end part of a soil preparation body 35 is positioned on the furthermore front side than a vertical line L1 passing the rear end K21 of a rotational locus K2 on the outer end part of a rear wheel 2.SELECTED DRAWING: Figure 4【課題】整地装置を作業装置と機体の後部との間に配置した水田作業機において、水田作業機の全長（機体の前端部から作業装置の後端部までの長さ）を抑える。【解決手段】整地装置２６を支持するリンク機構の下降状態において、側面視で、整地体３５の外端部の回転軌跡Ｋ１の前端部Ｋ１１が、後輪２の外端部の回転軌跡Ｋ２の後端部Ｋ２１を通る鉛直線Ｌ１よりも、前側に位置する。【選択図】図４
