The invention relates to the field of coatings, in particular to a high-performance pipeline anticorrosive coating, which is prepared from 40-60 parts of epoxy resin, 30-40 parts of coal ash, 5-10 parts of an anti-rust pigment, 20-30 parts of polyurethane, 5-8 parts of a chain extender and 1-3 parts of modified asbestos, wherein the coal ash is modified coal ash; the modified coal ash is obtainedby adding a flotation agent in a coal ash raw material, performing uniform stirring for flotation, performing magnetic separation on obtained tailings and adding TiO2 for modification. The coal ash raw material is treated with desulfurization before flotation, so that a pipeline is prevented from being corroded by a sulphur component. The coating provided by the invention is high in solid content,tensile strength and viscosity, is suitable for corrosion prevention on the inner wall and the outer wall of the pipeline, particularly on the outer wall, and can remarkably inhibit a photocorrosioneffect. In addition, for the coating, by utilizing the coal ash, as industrial wastes, on one hand, the cost of the anticorrosive coating is lowered, and on the other hand, pollution caused by direction discharge of the coal ash is also lowered.