The present invention discloses hard heat-dissipation paint. The hardheat-dissipation paint consists of the following raw materials in parts by weight:2-3 parts of ethylene glycol distearate, 12-15 parts of styrene-maleic anhydride copolymer, 6-10 parts of propargyl alcohol, 90-100 parts of tetrahydrofuran, 4-7 parts of graphene, 16-20 parts of nano silica, 0.2-0.3 part of a silane coupling agent KH560, 700-800 parts of dimethyl formamide, 4-5 parts of sodium nitride, 0.04-0.05 part of aluminium trichloride, 1.6-2 parts of a 2-3% sodium ascorbate solution, 1.8-2 parts of a 2-3% copper sulfate solution, 120-130 parts of high density polyethylene, 2-3 parts of barium metaborate, 0.8-1 part of calcium palmitate, 0.7-2 parts of allythiourea, 0.6-1 part of poly(oxypropylene) diol, 1-2 parts of aluminosilicate fibers, and 0.1-0.2 part of aluminum isopropoxide. The paint provided by the present invention is high in the surface hardness, good in the impact resistance, good in weather-ability, high in coating membrane stability, and superior in synthesis performance.