Recently, graphene has been attracted interest for its excellent transparency, high surface area, and electrical conductivity. These properties of graphene will be a great help in improving the photocatalytic efficiency of TiO2. Hybrid materials having metal nanoparticles on the upper and lower surfaces of two-dimensional graphene materials have been recently studied because that can be used for an electroconductive film, a magnetic film, and an electromagnetic wave shielding film. In this study, we aimed to study the optimal manufacturing conditions of electromagnetic wave shield through the preparation of coating solution incorporating garaphen and metal oxide.