▎ 摘　　要

NOVELTY - Preparing electrode comprises (i) taking transparent high-conductivity graphene, mixing uniformly with metal and/or metal oxide; (ii) mixing the graphene composite material with a solvent and ultrasonically dispersing; (iii) forming an adhesive layer of graphene composite material on the substrate surface with an adhesive; and (iv) spraying prepared graphene composite dispersion on the surface of the adhesive layer and drying to obtain a graphene composite electrode body, and then the upper end of the dried graphene composite electrode body is fixed with conductive glue. USE - The method is useful for preparing electrode for electro catalytic oxidation of waste water. (claimed). ADVANTAGE - The method has simple preparation process, has high conductivity, strong anti-pollution and has resistance to strong acid and alkali. DETAILED DESCRIPTION - Preparing electrode comprises (i) taking transparent high-conductivity graphene, mixing uniformly with metal and/or metal oxide to obtain graphene composite material; (ii) mixing the graphene composite material with a solvent and ultrasonically dispersing to obtain the graphene composite material dispersion; (iii) forming an adhesive layer of graphene composite material on the substrate surface with an adhesive; and (iv) spraying prepared graphene composite dispersion on the surface of the adhesive layer and drying at 45-75 degrees C to obtain a graphene composite electrode body, and then the upper end of the dried graphene composite electrode body is fixed with conductive glue.