PROBLEM TO BE SOLVED: To provide a rice field implement comprising a trencher in such a state that the implement hardly abut against a levee at the time of a turning run.SOLUTION: A trencher 14 is connected to a rice field implement A so as to be freely switched between a working connected position and a nonworking connected position, in which the trencher 14 is displaced to the front of the trencher body in comparison to the working connected position. The trencher 14 is equipped with operation means activated by raising the rice field implement A to an elevated non-work position, thereby to change the trencher 14 into the non-work connected position.【課題】旋回走行時などにおいて畦などに当たりにくい状態で溝切り体を備える水田作業機を提供する。【解決手段】溝切り体１４を、作業用連結姿勢と、作業用連結姿勢に対して車体前方側に変位した非作業用連結姿勢とに切り換え自在に水田作業装置Ａに連結してある。水田作業装置Ａを上昇非作業位置に上昇させる操作によって作動操作されて、溝切り体１４を非作業用連結姿勢に切り換え操作する操作手段を備えてある。【選択図】図１
