The invention provides a method for wiping the surface of strip steel. The method comprises the following steps: 1, removing water: providing an upper roller and a lower roller which are opposite up and down, wherein the strip steel is extruded by the upper roller and the lower roller so that the water in the surface of the strip steel is removed, the middle parts of the upper roller and the lower roller are cylindrical rollers, circular truncated cone-shaped rollers are arranged at two ends of each cylindrical roller, and the width of the strip steel is more than that of each cylindrical roller; and b, drying, namely, sending the strip steel in drying equipment after the water of the strip steel is removed. According to the method for wiping the surface of the strip steel, provided by the invention, the strip steel can be effectively extruded, the water remained on the surface of the strip steel is removed as much as possible, the quality of the strip steel is effectively improved, and the purposes of reducing the changing frequency of the rollers and prolonging the service life of the roller can be reached.