An operating controller and a terminal device are provided. The operating controller includes a controller housing and an adsorption structure. The controller housing includes a plurality of movable function buttons. The adsorption structure is arranged on the controller housing. At least one of the plurality of function buttons includes a button body and a button column. The button body includes a surface for operation and a back surface arranged opposite to the surface for operation. The back surface of the button body is connected to the button column, and the button column is linked with the button body, the button column includes a first end and a second end and a touch layer, the first end and the second end are arranged opposite to each other, the first end is connected to the button body, the second end is provided with the touch layer formed by a material that is enabled to touch and control the touch screen.