A symbol illuminator of game machines includes a wheel member having symbols at an outer circumferential surface thereof; a casing for the wheel member attached a printed circuit board having a plurality of illuminants; and a reflective frame member having enclosure walls expanding outwardly to a forward direction from a central part thereof, having a plurality of windows into which the illuminants are set, the illuminants being arranged so as to project inside a center part of the reflective frame member; and a projection part, having a reflective face, reflecting the light emitted by the illuminants toward at least the symbol from the inner side of the wheel member so that it can irradiate a reflex of a reflective frame member equally without spots to the symbol of wheel member and can reduce the number of the parts.