Rotary operation assembly and rotary switch

The embodiment of the invention provides a rotary operation assembly and a rotary switch. The rotary operation assembly is suitable for being connected with a switch shaft of a switch body, the rotary operation assembly comprises an operation handle, the operation handle is provided with an installation space, and a connecting piece used for connecting the operation handle to the switch shaft is arranged in the installation space; the locking piece is connected to the operating handle and can move between a locking position and an unlocking position relative to the operating handle, under the condition that the locking piece is located at the locking position, the locking piece prevents the operating handle from rotating and at least partially shields the mounting space, and under the condition that the locking piece is located at the unlocking position, the locking piece is located at the unlocking position. And under the condition that the locking piece is located at the unlocking position, the locking piec