Abstract: This invention is about a bracket apparatus for road sign that connects a road sign to the support, and more in detail, it is about the bracket apparatus for road sign, made up of a simple connection and at the same time, having a structure including a composition for the prevention of corrosion, so a road sign can be simply connected to the support without a separate combining means and solves friction with the road sign, and can prevent abrasion and noise and reduce the impact on the road sign and prevent the damage of appearance of the road sign due to corrosion.