The invention discloses a solar electric power device dual-number sign board which comprises a substrate. An identifying area, an energy storage area, a display area and a control area are arranged onthe upper end surface of the substrate, a reflecting layer is arranged in the identifying area, a solar panel is pasted on the energy storage area, the display area is provided with an LED (light-emitting diode) unit, the control area is provided with a controller and used for controlling display conditions of the display area, an output end of the solar panel is connected with an input end of the energy storage area, and an output end of the controller is connected with an input end of the LED unit. The sign board is provided with a sign board body, light reflecting and light emitting are integrated, the sign board has a light reflecting function and can emit light by accumulating solar energy, emitted light solves the problem that the electric power device dual-number sign board cannotplay a role when a light source is lost at night, and injury and death accidents of electric power workers are avoided when the electric power workers accidentally enter charged intervals.