An automatic grinding machine including: grinding parts that each provide a grinding wheel on which a rotary shaft is positioned perpendicular to the ground; a flat lathe part placed parallel to the ground underneath the aforementioned grinding parts; mounting parts located on the top surface of the aforementioned lathe so that workpieces can be mounted; jigs located on both sides of each of the aforementioned mounting parts so that the aforementioned workpieces can be secured; and a control part that causes a desired surface of any one of the aforementioned workpieces to come into contact with one of the aforementioned grinding parts by moving the aforementioned the lathe in the pre-set direction axis direction.
