The road sign covering system is a traffic control device. The road sign covering system incorporates a road sign structure and an enclosure structure. The road sign covering system is a temporary device used to reconfigure the sentiment generated by the road sign structure by changing the image displayed from the road sign structure. The road sign covering system forms a protection space that prevents the original image on the road sign structure from generating misleading sentiments regarding the temporary traffic control instruction currently in effect. The road sign structure is the structure of the road sign covering system that presents the permanent traffic control instruction intended to be displayed at a location. The enclosure structure is the structure that: a) obscures the permanent traffic control instruction displayed by the road sign structure; and, b) displays the temporary traffic control instruction currently in effect.