There is provided with a method of manufacturing a resin article having a plating layer. A portion of a surface of a resin article is irradiated with ultraviolet rays. A binding agent is applied to the surface of the resin article. The binding agent binds the resin article with an electroless plating catalyst. The resin article applied with the binding agent is washed using an alkaline solution. The electroless plating catalyst is applied to the surface of the resin article after the resin article was washed. The resin article applied with the electroless plating catalyst is submerged in an electroless plating solution.