The invention discloses a heat-insulation heat-preservation noise-reduction coating and a preparation method thereof. The noise-reduction coating is prepared from epoxy modified acrylic emulsion, hydrogenated rosin resin, salicylhydroxamic acid, sulfonated bitumen, tire powder, glass flake, organic modified rectorite, hollow glass beads, sodium fluosilicate, carbitol hexyl acrylate, dioctyl sebacate, maleic anhydride, sodium dodecyl sulfate, simethicone, potassium tripolyphosphate, nonylphenol polyethylene ethoxy ether, dioctyl phthalate, diethyl suberate, 4,4'-dithiomorpholine, zinc methacrylate, polyvinyl alcohol, zinc stannate, toluenesulfonic acid and water. The heat-insulation heat-preservation noise-reduction coating is good in heat insulation and heat preservation, high in bonding strength, high in hardness, strong in adhesive force, good in ultraviolet aging resistance, excellent in comprehensive performance and good in market prospect, and well meets the application requirements for energy conservation and consumption reduction.