The invention relates to a roller plough comprising a plough frame (2) and a plough body (3) mounted thereon with a plough body mounting, and further a breast board (9), and one or more breast board rollers (10, 11, 12) rotating on an axle (13). A plough-iron (20) is also secured to the plough body (3). The roller plough further comprises a support wheel (21) arranged behind the plough body. According to the invention, at least one breast board roller (10, 11, 12) comprises means for crushing the soil turned out by the breast board. There is also disclosed a plough body mounting comprising a height adjustment piece (4) fastened to the plough body (3) with a releasable or fixed fastening. The height adjustment piece (4) comprises one or more points of rotation, which are perpendicular to the plane of the plough body (3). The rear end of the plough frame (2) comprises a sheath-like receptacle (6) with openings (7) for receiving pins. Further supporting elements, preferably screws (8) are positioned in the side or barrel of the receptacle (6).