The invention discloses an anti-corrosion, conductive and hydrophobic coating for an overhead line system component, which is characterized in that the anti-corrosion, conductive and hydrophobic coating is used for corrosion and hydrophobic protection of the overhead line system component in a tunnel, and the anti-corrosion, conductive and hydrophobic coating comprises the following components in parts by mass: 10-20 parts of film-forming resin, 55-65 parts of an organosilicon monomer, 0.5-2.5 parts of a cross-linking agent, 5-10 parts of an interface adhesive, 0.1-0.3 part of a catalyst, 30-60 parts of a conductive filler, 1-3 parts of a corrosion inhibition passivator, 0.2-0.4 part of a directional arrangement agent, 3-6 parts of a dust-proof agent, 10-20 parts of a solvent, 0.3-0.8 part of a defoaming agent and 5-20 parts of pigment and filler; The film-forming resin is organic silicon modified bisphenol A epoxy resin. After the pollution-repellent coating forms a film, the film is compact, high in hardness and low in surface energy, has excellent salt-spray corrosion resistance, damp-heat corrosion resistance, conductivity and pollution-repellent performance, and can meet the pollution-repellent, anti-corrosion and conductive requirements in a high-speed rail overhead line system assembly tunnel.