A light emission beauty device comprises a tubular body, a light emission device, a lighting circuit, a controller, and a light-emitting switch. The light emission device comprises a lens located at a side of one end of the tubular body and a light source located at the back of the lens. The lighting circuit is configured to activate the light source. The controller is configureed to control the lighting circuit. The light-emitting switch is configured to supply a light-emitting signal to the controller in accordance with on operation. The controller is configured to make the lighting circuit activate the light source in response to receiving the light-emitting signal continuously for a predetermined time. Thus, a light emission beauty device can prevent unexpected light emission and can improve safety.
