Electrodeless adjusting button of lamp

The invention discloses an electrodeless adjusting button of a lamp. The electrodeless adjusting button is round, and comprises a control module and an operating module, the radius from the circle center to the outer diameter of the circle is adopted as a coordinate axis X in the round area of the electrodeless adjusting button, the axis X is set to have the color temperature adjusting function of the lamp in the control module, the length between the position of a contact on the operating module and the circle center is a coordinate value on the axis X, the fan-shaped radian of the circle is adopted as a coordinate axis Y, the axis Y is set to have the brightness adjusting function of the lamp in the control module, the radian of the contact on the operating module sliding to the position is a coordinate value on the axis Y, and the brightness and color temperature of the lamp are controlled through the coordinate value on the axis X and the coordinate value on the axis Y. The electrodeles adjusting button of the lamp is round, the operating contact on the button can rotate in the round area of the button by 360 degrees, and therefore electrodeless adjustment is carried out on the lamp on the round button to achieve the better visual effect and user experience.