Knob switch control device

The invention discloses a knob switch control device. The knob switch control device comprises a button end cover, a display screen, a button, a knob upper cover, a button reset spring, a fluted disc, a fluted disc reset spring, a button supporting base, a knob lower cover, an encoder, a switch spring and a control circuit board, wherein the encoder is electrically connected to the control circuit board; the switch spring is electrically connected to the lower end face of the button corresponding to the central position of the encoder; the knob lower cover is buckled on the outer ring of the encoder; the button supporting base is buckled on the inner ring of the encoder; the display screen is embedded in the upper end of the button, the lower end of the button is connected with the top part of the switch spring; the display screen is electrically connected with the control circuit board; the lower end of the circumferential edge of the button end cover is buckled at the upper end of the circumferential edge o