Operating controller and terminal device

An operating controller, comprising:

• a controller housing, wherein the controller housing comprises a plurality of movable function buttons, and
• an adsorption structure, configured to adsorb and fix the controller housing on a touch screen, wherein the adsorption structure is arranged on the controller housing,
• wherein at least one of the plurality of function buttons comprises a button body and a button column;
• the button body comprises 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 comprises a first end and a second end opposite to each other and a touch layer, 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,
• wherein the back surface of the button body comprises a groove, the first end of the button column is accommodated in the groove, and the second end of the button column protrudes outside the groove.