An induction heating roll comprises: a circular inner barrel having an induction coil wound around the outer peripheral surface thereof; a circular outer barrel containing the circular inner barrel, the outer peripheral surface of the circular outer barrel being heated by electromagnetic induction of the circular inner barrel; and a control unit for providing the induction coil with induction power at a predetermined frequency, wherein the circular inner barrel comprises: a core bobbin formed in the shape of a hollow cylinder using a non-magnetic metal material, the core bobbin having a gap formed through incision in the longitudinal direction of the cylinder; a first insulating cloth surrounding the outer peripheral surface of the core bobbin; a core support unit formed in the shape of a cylinder using a metal material so as to surround the outer peripheral surface of the first insulating cloth, the core support unit having a plurality of insertion grooves formed thereon in the longitudinal direction of the
