PROBLEM TO BE SOLVED: To provide a paddy field working machine that includes a front hopper and a feeding part and a rear hopper and a feeding part, in which maintainability is improved.SOLUTION: A working device 5 is configured by horizontally arranging and disposing a front hopper 23 for storing powder granules, and multiple front feeding parts 20 for feeding powder granules of the front hopper 23 and supplying the granules to a paddy； and by horizontally arranging and disposing rear hoppers 46, 47 for storing powder granules at the rear side of the front hopper 23 and the front feeding part 20, and multiple rear feeding parts 48 for feeding the powder granules of the rear hoppers 46, 47 and supplying the granules to the paddy. The rear hoppers 46, 47 and the rear feeding part 48 are configured so as to be freely changeable into a working posture for supplying the powder granules in the paddy and a non-working posture apart from the working posture.【課題】前のホッパー及び繰り出し部、後のホッパー及び繰り出し部を備えた水田作業機において、メンテナンス性の向上を図る。【解決手段】粉粒体を貯留する前ホッパー２３と、前ホッパー２３の粉粒体を繰り出して田面に供給する複数の前繰り出し部２０を左右方向に並べて配置し、前ホッパー２３及び前繰り出し部２０の後側において、粉粒体を貯留する後ホッパー４６，４７と、後ホッパー４６，４７の粉粒体を繰り出して田面に供給する複数の後繰り出し部４８とを左右方向に並べて配置して、作業装置５を構成する。後ホッパー４６，４７及び後繰り出し部４８を、粉粒体を田面に供給する作業姿勢、及び、作業姿勢から離れた非作業姿勢に変更自在に構成する。【選択図】図６
