A wire-drawing device that draws a wire rod by passing the wire rod through a die hole provided by a pair of roller dies, the wire-drawing device comprising: a frame; rotation shafts that support the respective roller dies such that the roller dies are rotatable about the rotation shafts; a supporting body that is separate from the frame and on which the rotation shafts supporting the roller dies are mounted, the supporting body supporting the rotation shafts mounted; a first positioning means that positions the supporting body with respect to the frame by moving the supporting body in an axial direction of the rotation shafts supported by the supporting body; and a second positioning means that positions the supporting body with respect to the frame by moving the supporting body in a direction perpendicular to the axial direction of the rotation shafts supported by the supporting body, wherein the rotation shafts of the roller dies each include a cooling means provided inside the rotation shaft and extending along the axis of the rotation shaft; a supply port provided at one end of the rotation shaft of the roller die and through which a cooling medium is supplied to the cooling means; and a discharge port provided at another end of the rotation shaft and through which the cooling medium is discharged from the cooling means, wherein the frame has notches (10a, 10b) at positions corresponding to the supply port and the discharge port, respectively, and wherein, when the supporting body is positioned with respect to the frame, the supply port and the discharge port provided to each of the rotation shafts are movable within the notches (10a, 10b) without interfering with the frame. a frame; rotation shafts that support the respective roller dies such that the roller dies are rotatable about the rotation shafts; a supporting body that is separate from the frame and on which the rotation shafts supporting the roller dies are mounted, the supporting body supporting the rotation shafts mounted; a first positioning means that positions the supporting body with respect to the frame by moving the supporting body in an axial direction of the rotation shafts supported by the supporting body; and a second positioning means that positions the supporting body with respect to the frame by moving the supporting body in a direction perpendicular to the axial direction of the rotation shafts supported by the supporting body, wherein the rotation shafts of the roller dies each include a cooling means provided inside the rotation shaft and extending along the axis of the rotation shaft; a supply port provided at one end of the rotation shaft of the roller die and through which a cooling medium is supplied to the cooling means; and a discharge port provided at another end of the rotation shaft and through which the cooling medium is discharged from the cooling means, wherein the frame has notches (10a, 10b) at positions corresponding to the supply port and the discharge port, respectively, and wherein, when the supporting body is positioned with respect to the frame, the supply port and the discharge port provided to each of the rotation shafts are movable within the notches (10a, 10b) without interfering with the frame.