The invention relates to the field of electronic control, and discloses a multifunctional button. The multifunctional button comprises a button body, a rotary knob body, a hollow encoder and a first PCB provided with a trigger switch; the rotary knob body is fixedly connected with the outer side wall of the hollow encoder, and when the rotary knob body rotates, the outer side wall of the hollow encoder is driven to rotate; the button body penetrates through the rotary knob body to be connected with the inner side wall of the hollow encoder, and the hollow encoder is fixedly connected with the first PCB; when the middle of the button body is pressed, the button body moves downwards, a stepping pin of the button body touches and triggers a trigger button arranged on the PCB, and after the pressed button body is loosened, the button body is reset. According to the multifunctional button, the accuracy and user experience of button operation are improved while multifunctional operation is achieved.