Automatic lighting system of transversal markings of pedestrian crossings, the automatic lighting system comprising: - several lighting devices configured to be sunk in asphalt and fixed on a metallic net, each one of the lighting devices comprising a box being closed with a detachable lid, the lid comprising an opening cut in the center thereof, the lid being equipped with a window fixed by a protection frame which is welded around the opening, wherein the window is made of tempered glass, such that the glass in the mounted state of the automatic lighting system, is at the level of a roadway, wherein the box comprises a LED lighting unit in the interior, the lid further comprising an external frame welded on the edge thereof, the protection frame and the external frame protruding from a surface of the lid, such that the surface of the lid between the external frame and the protection frame is suitable for being poured asphalt bitumen on, and for subsequently being painted with reflecting paint, the lid representing the transversal marking of the pedestrian crossing; - a supporting pole in the proximity of the pedestrian crossing, the supporting pole comprising a photovoltaic power plant and a twilight sensor for powering and switching on electric circuits of the LED lighting unit when a certain minimum intensity of natural light is reached. - several lighting devices configured to be sunk in asphalt and fixed on a metallic net, each one of the lighting devices comprising a box being closed with a detachable lid, the lid comprising an opening cut in the center thereof, the lid being equipped with a window fixed by a protection frame which is welded around the opening, wherein the window is made of tempered glass, such that the glass in the mounted state of the automatic lighting system, is at the level of a roadway, wherein the box comprises a LED lighting unit in the interior, the lid further comprising an external frame welded on the edge thereof, the protection frame and the external frame protruding from a surface of the lid, such that the surface of the lid between the external frame and the protection frame is suitable for being poured asphalt bitumen on, and for subsequently being painted with reflecting paint, the lid representing the transversal marking of the pedestrian crossing; wherein the window is made of tempered glass, such that the glass in the mounted state of the automatic lighting system, is at the level of a roadway, wherein the box comprises a LED lighting unit in the interior, the lid further comprising an external frame welded on the edge thereof, the protection frame and the external frame protruding from a surface of the lid, such that the surface of the lid between the external frame and the protection frame is suitable for being poured asphalt bitumen on, and for subsequently being painted with reflecting paint, the lid representing the transversal marking of the pedestrian crossing; - a supporting pole in the proximity of the pedestrian crossing, the supporting pole comprising a photovoltaic power plant and a twilight sensor for powering and switching on electric circuits of the LED lighting unit when a certain minimum intensity of natural light is reached.