The utility model provides a novel bearing ring surface grinding machine, including the lathe bed, a left side, right side servo motor and work piece planker, a left side, the right side servo motor fix on a left side, on the slip table of the right side, a left side, right side work piece planker is installed to the left side of lathe bed, on the slip table of the right side, a left side, an upper right unloader and a left side, the right side bearing ring all install on a left side, on the work piece layer board of the right side, the emery wheel centre gripping is on a left side, right side bearing ring's centre, the emery wheel is fixed in the lathe bed middle part through the grinding carriage, be fixed with the repairment planker on the grinding carriage, be fixed with servo motor on the repairment planker, the lathe bed bottom still is equipped with the mobile device, and the mobile device includes horizontal pole portion, universal wheel, fixed foot and regulating wheel, and horizontal pole portion one end is equipped with the universal wheel, and the other end is equipped with fixed foot, is equipped with the regulating wheel on the fixed foot, adjusts about can going on fixed foot through the regulating wheel.