The invention discloses a multifunctional control turn button which is characterized in that the multifunctional control turn button comprises the components of a control module, a touch control cover, a control rotating ring, a fixing board, a control base board and a bottom fixing cover; the touch control cover and the fixing board are arranged on the control base board fixedly; the control rotating ring sleeves the touch control cover; the fixing board is provided with a mounting hole; a spring ring is arranged in a manner of surrounding the control rotating ring; the control base board is provided with a sensing pin head assembly, an annular indicating lamp set, annular separated light guiding columns and a photoelectric coding switch; a plurality of isolated light guiding holes and pin header positioning holes are separately arranged on the annular separated light guiding columns; a capacitive sensing touch board is arranged between the touch control cover and the annular separated light guiding columns; the capacitive sensing touch board is provided with an annular sensing plate and an annular light penetrating contact set; the end surface of the touch control cover is provided with a touch type light penetrating function button set; and the control rotating ring is provided with a tooth-shaped coding disc. The multifunctional control turn button is advantageous in that control can be performed through touch type or rotating operations; and furthermore relatively high waterproof performance is realized.