The invention relates to a novel thermal-insulation waterproof coating used for solar energy devices. The coating is prepared from the following components in parts by weight: 44-87 parts of a film forming agent, 28-32 parts of acrylic resin, 1-3 parts of polyvinylpyrrolidone, 1.0-2.4 parts of carbon black, 1.1-1.8 parts of chrome oxide green, 8-10 parts of methyl isobutyl ketone, 13-25 parts of afilm forming auxiliary agent, 4-9 parts of enamel black, 44-63 parts of a light absorbing agent, 1-3 parts of chlorinated paraffin, 1-2 parts of carbon black, 8-10 parts of precipitated barium sulfate, 23-47 parts of a solvent, 4-8 parts of a manganese ferrite black pigment, 6-23 parts of an auxiliary agent, 0.2-0.4 part of a silane coupling agent, and 1-2 parts of sulfonated graphene. The coating provided by the invention has the advantages that a coating layer prepared from the coating has a high absorption rate, high thermal conductivity, low radiance and high stability, and a conversion rate of solar energy by an endothermic coating is effectively improved; and the coating has good weather resistance and water resistance, and is a solar energy endothermic coating especially suitable for a solar energy heat absorber.