An induction heating roll device for performing induction heating of a resin material while pressurizing the resin material, comprising: first and second resin processing bodies (5a, 5b, 7a, 7b, 7c) adapted to pressurize the resin material by interposing the resin material between the first and second resin processing bodies (5a, 5b, 7a, 7b, 7c), at least one of the first and the second resin processing bodies (5a, 5b, 7a, 7b, 7c) being a roll; an induction heating coil which is provided inside of the roll; and a cooling medium supply device adapted to supply a mist-like cooling medium to a cooling medium flow channel which is formed inside of the roll, wherein the induction heating coil is adapted to perform induction heating of the roll, and the cooling medium supply device is adapted to cool the heated roll by supplying a mist-like cooling medium to the cooling medium flow channel, and in a radial direction of the roll, the induction heating coil is positioned on a center axis (Ca) side of the roll, and the cooling medium flow channel is positioned on an outer circumferential surface side of the roll, the device further comprising: a discharge flow channel disposed toward the center axis (Ca) side than the cooling medium flow channel and extends in an axial direction of the rolling roll, wherein the discharge flow channel is configured to discharge the cooling medium supplied to the cooling medium flow channel outside the rolling roll, and the discharge flow channel is formed inside of an extension portion of the rolling roll, and the cooling medium supply device includes a nozzle portion, the nozzle portion is configured to spray a supplied cooling medium, to a communication passage which is formed inside of the extension portion, and configured to supply pressurized air, and thereby able to supply the mist-like cooling medium to the cooling medium flow channel through the communication passage. first and second resin processing bodies (5a, 5b, 7a, 7b, 7c) adapted to pressurize the resin material by interposing the resin material between the first and second resin processing bodies (5a, 5b, 7a, 7b, 7c), at least one of the first and the second resin processing bodies (5a, 5b, 7a, 7b, 7c) being a roll; an induction heating coil which is provided inside of the roll; and a cooling medium supply device adapted to supply a mist-like cooling medium to a cooling medium flow channel which is formed inside of the roll, wherein the induction heating coil is adapted to perform induction heating of the roll, and the cooling medium supply device is adapted to cool the heated roll by supplying a mist-like cooling medium to the cooling medium flow channel, and in a radial direction of the roll, the induction heating coil is positioned on a center axis (Ca) side of the roll, and the cooling medium flow channel is positioned on an outer circumferential surface side of the roll, the device further comprising: a discharge flow channel disposed toward the center axis (Ca) side than the cooling medium flow channel and extends in an axial direction of the rolling roll, wherein the discharge flow channel is configured to discharge the cooling medium supplied to the cooling medium flow channel outside the rolling roll, and the discharge flow channel is formed inside of an extension portion of the rolling roll, and the cooling medium supply device includes a nozzle portion, the nozzle portion is configured to spray a supplied cooling medium, to a communication passage which is formed inside of the extension portion, and configured to supply pressurized air, and thereby able to supply the mist-like cooling medium to the cooling medium flow channel through the communication passage.