ROTARY OPERATION SWITCH

To provide a thin, miniature, and inexpensive rotational operation type switch, which is small in depth dimension from the operation surface of the switch, wherein it is possible to switch a switching contact mechanism by rotationally operating an operation button. An operation button, supported on a frame so as to be rotationally operable, and one switching contact mechanism, disposed opposite to the lower surface of the operation button, are provided, thus adopting a configuration wherein an operation mechanism, including a rotary cam, which operates and switches the switching contact mechanism in conjunction with the rotational operation of the operation button, is provided between the operation button and the switching contact mechanism.