The invention provides solvent-free insulating anti-corrosive waterproof coating. The coating is prepared from a component A and a component B; the component A is prepared from, by weight, 38 parts ofpoly asparaginic acid resin, 3-5 parts of auxiliaries, 15-25 parts of a thermal conductive filler, 1-20 parts of a pigment, 15-40 parts of fire retardant, 1-4 parts of a coupling agent and 1-4 partsof a water repellent; the component B is prepared from 25 parts of a curing agent. The coating has the excellent insulating property and excellent thermal conductivity, weather resistance and corrosion resistance.