[PROBLEMS] To remove weeds from the surface of a paddy field and to cut the weeds floating on the surface without leaving them, so that the weeds do not take root even if they settle on the surface after weeding. A paddy weeding machine that can scrape off more efficiently is provided. A paddy weeding machine W1 has a traveling machine 1 and a height adjusting mechanism that is arranged in front of the traveling machine and can adjust the height of the traveling machine, and becomes a streak of rice plants during weeding work. A plurality of cutters 65 that are provided at respective positions and that rotate in the vertical direction, and the cutters are arranged in front of the grass cutting device 6 for cutting the weeds floating on the water surface. And a grass scraping device 5 that scrapes the weeds around the rice stock by scratching the rice field with a scraping body 52 inclined at a required angle with respect to the horizontal direction so that the trajectory is a disc shape and the traveling direction side is lowered. [Selection] Figure 1【課題】水田の除草作業で、田面から雑草を掻き取り、水面に浮いた雑草をそのまま放置せず切断して、除草作業後に雑草が田面に沈んでも根付くことがないようにしたものにおいて、雑草の掻き取りをより効率的に行うことができる水田除草作業機を提供する。【解決手段】水田除草作業機W1は、走行機1と、走行機の前方に配され、走行機に対する高さ調節ができる高さ調節機構を有し、除草作業時に稲株の条間となる位置にそれぞれ設けられた上下方向に回転する複数のカッター65を有すると共にカッターが水面に浮いた雑草の切断を行う草切断装置6と、草切断装置の前方に配され、線条体524の回転軌跡が円盤状で走行方向側が下がるように水平方向に対し所要角度で傾斜している掻取体52で田面を掻いて稲株の周りの雑草を掻き取る草掻取装置5とを備える。【選択図】図1