An operating apparatus (10, 10A, 110) disposed on a surface of a detection panel that is configured to detect a change in electrostatic capacitance, the operating apparatus (10, 10A, 110) comprising: a supporter (21, 54) on the surface of the detection panel; an operation body (11, 111) supported by the supporter (21, 54) so as to be movable in a pressing direction along a reference axis orthogonal to the surface of the detection panel and a rotational direction about the reference axis, wherein a hole is provided from the supporter (21, 54) to the operation body (11, 111), and the reference axis is located in the hole, a press detection conductor (15, 58) facing the surface of the detection panel, the press detection conductor (15, 58) being configured to move in the pressing direction along the reference axis; and a rotation detecting conductor (35, 53) facing the surface of the detection panel, the rotation detecting conductor (35, 53) being configured to move in the rotational direction about the reference axis, the press detection conductor (15, 58) and the rotation detecting conductor (35, 53) being arranged around the hole, wherein the press detection conductor (15, 58) is moved in the pressing direction by the pressing operation of the operation body (11, 111), and the rotation detecting conductor (35, 53) is moved in the rotational direction by the rotating operation of the operation body (11, 111), characterized in that the operation body (11, 111) has a ring shape having a circular outer rim about the reference axis and a circular inner rim about the reference axis, and wherein the supporter (21, 54), the rotation detecting conductor (35, 53), and the press detection conductor (15, 58) are located between the outer rim and the inner rim. a supporter (21, 54) on the surface of the detection panel; an operation body (11, 111) supported by the supporter (21, 54) so as to be movable in a pressing direction along a reference axis orthogonal to the surface of the detection panel and a rotational direction about the reference axis, wherein a hole is provided from the supporter (21, 54) to the operation body (11, 111), and the reference axis is located in the hole, a press detection conductor (15, 58) facing the surface of the detection panel, the press detection conductor (15, 58) being configured to move in the pressing direction along the reference axis; and a rotation detecting conductor (35, 53) facing the surface of the detection panel, the rotation detecting conductor (35, 53) being configured to move in the rotational direction about the reference axis, the press detection conductor (15, 58) and the rotation detecting conductor (35, 53) being arranged around the hole, wherein the press detection conductor (15, 58) is moved in the pressing direction by the pressing operation of the operation body (11, 111), and the rotation detecting conductor (35, 53) is moved in the rotational direction by the rotating operation of the operation body (11, 111), characterized in that the operation body (11, 111) has a ring shape having a circular outer rim about the reference axis and a circular inner rim about the reference axis, and wherein the supporter (21, 54), the rotation detecting conductor (35, 53), and the press detection conductor (15, 58) are located between the outer rim and the inner rim.