A handle device operating an inner cable inserted in an outer cable, the handle device comprising: a handle base fixing an operation handle to which the inner cable is connected; and a cable holding portion provided in the handle base to hold the outer cable and configured to be fitted to a circumferential groove portion reduced in diameter in a radial direction in an outer circumferential surface of the outer cable, wherein the cable holding portion includes a fitting portion which is configured to be fitted to the circumferential groove portion and to hold the outer cable, and a pair of guide pieces (26, 27) which is provided to face each other to fit into the circumferential groove portion from both sides and which forms an insertion groove guiding the circumferential groove portion into the fitting portion, wherein a first guide piece which is one guide piece of the pair of guide pieces (26, 27) includes a fixing portion, characterized in that when the circumferential groove portion moves along the insertion groove, the fixing portion is elastically deformed to a direction perpendicular to a plane where the first guide piece extends, that when the circumferential groove portion passes the first guide piece, the fixing portion is elastically returned to the direction perpendicular to the plane to be engaged with the outer circumferential surface of the outer cable, that the first guide piece has a boundary between the first guide piece and the fitting portion separated by a gap, and that the fixing portion is a corner of the first guide piece adjacent to the gap, the corner extending in the direction perpendicular to the plane. a handle base fixing an operation handle to which the inner cable is connected; and a cable holding portion provided in the handle base to hold the outer cable and configured to be fitted to a circumferential groove portion reduced in diameter in a radial direction in an outer circumferential surface of the outer cable, wherein the cable holding portion includes a fitting portion which is configured to be fitted to the circumferential groove portion and to hold the outer cable, and a pair of guide pieces (26, 27) which is provided to face each other to fit into the circumferential groove portion from both sides and which forms an insertion groove guiding the circumferential groove portion into the fitting portion, wherein a first guide piece which is one guide piece of the pair of guide pieces (26, 27) includes a fixing portion, characterized in that when the circumferential groove portion moves along the insertion groove, the fixing portion is elastically deformed to a direction perpendicular to a plane where the first guide piece extends, that when the circumferential groove portion passes the first guide piece, the fixing portion is elastically returned to the direction perpendicular to the plane to be engaged with the outer circumferential surface of the outer cable, that the first guide piece has a boundary between the first guide piece and the fitting portion separated by a gap, and that the fixing portion is a corner of the first guide piece adjacent to the gap, the corner extending in the direction perpendicular to the plane.