Apparatus for treating the surface of a curved material

The present invention relates to an apparatus for processing the surface of a curved material. According to the present invention, the apparatus includes: a high voltage electrode unit which is disposed on a convex-downward curved surface for multiple bar-type high voltage electrodes to have a curvature corresponding to a curvature of the curved material, which is a processing target; a housing which covers the upper side of the high voltage electrode unit in a separated state; a plasma discharging unit which covers the high voltage electrode unit on the lower side of the housing by forming the convex-downward curved surface and discharges plasma in a radial type by passing the high voltage electrode unit; a reaction gas supplying unit which is installed on the housing and supplies reaction gas in a space where the high voltage electrode unit is located; and a cooling unit which is formed in the center of the housing and cools the housing and the high voltage electrode unit by circulating cooling medium.