The utility model relates to the field of medical apparatus and instruments relates to a jaw plane board, the utility model discloses: horizontal support, two groups of vertical support, two groups of measuring plate and magnetic plate, the magnetic plate is slid to set in the lower extreme of horizontal support and is fixed through screw, the vertical support is slid to set in the both sides of horizontal support and is fixed through screw, and measuring plate is respectively rotationally set in the inboard of corresponding vertical support and is fixed through screw, solved the problem that traditional fixed structure can not adjust, realized that the three -dimensional flexible adjustment of'front and back position - perpendicular height - angle' three dimensions, significantly promoted the compatibility and accuracy of jaw plane measurement, provided reliable basis for the full mouth denture production.