▎ 摘　　要

NOVELTY - Preparing three-dimensional graphene-based superhydrophobic coating comprises mixing three-dimensional graphene powder and binder to obtain uniform three-dimensional graphene dispersion, then coating on the surface of substrate to obtain three-dimensional graphene coating, then placing obtained three-dimensional graphene coating in organic solvent of fluorine-containing alkylsilane and/or long-chain alkylamine at 80-120 degrees C for a period of time, and performing hydrophobic treatment to obtain superhydrophobic coating layer, or placing obtained three-dimensional graphene coating in closed container of fluorine-containing alkylsilane and/or long-chain alkylamine at 120-200 degrees C for a period of time, and performing hydrophobic treatment to obtain superhydrophobic coating. USE - The method is useful for preparing three-dimensional graphene-based superhydrophobic coating. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for superhydrophobic coating is obtained by above method, where superhydrophobic coating has hydrophobic angle of more than 140 degrees .