Abstract: An apparatus for polishing medals for a game machine, and for separating an abrasive from the medals. An intake port (2) for the medals and the abrasive is provided on the lower end side of a polishing pipe (1) set upright, while a medal delivery port (3) is provided on the upper end side. A rotatable screw element (4) is mounted inside the polishing pipe (1) so as to lift up the medals and the abrasive while stirring them. A separation unit (A) which separates the abrasive from the medals and which feeds the separated abrasive to the intake port (2), is joined to the upper part of the polishing pipe (1).