NOVELTY - An UV-absorbing coating comprises cyclohexyl methacrylate, hydroxyethyl acrylate, UV absorbent monomer, 100-200 mass parts solvent, and 0.1-2 mass parts initiator in which UV absorbing coating is light yellow transparent liquid, and has 25-50% solid and 20-50 s viscosity at cup number 4, UV absorbent monomer is 2-(2-hydroxy-5-(2-(methacryloxy)ethyl)phenyl)-2H-benzotriazole, 2-hydroxy-4-methacryloxy-benzophenone, and 4-methyl acrylic-2,2,6,6-tetramethyl piperidine alcohol ester, solvent is ethyl acetate and/or toluene, and initiator is benzoyl peroxide and/or azodiisobutyronitrile.    USE - UV-absorbing coating for solar energy battery, LCD, outdoor advertisement, building, and vehicle.    ADVANTAGE - The coating is not easy to volatilize at high temperature, degrade, and separate out from resin, and has excellent optical transparency, good UV absorbing property, easy operation, anti-aging property, and anti-yellowing property.    DETAILED DESCRIPTION - An UV-absorbing coating comprises 40-60 mass parts cyclohexyl methacrylate, 10-20 mass parts hydroxyethyl acrylate, 20-50 mass parts UV absorbent monomer, 100-200 mass parts solvent, and 0.1-2 mass parts initiator which prepared by uniformly mixing at 15 degrees C under nitrogen protection and copolymerizing at 75-80 degrees C in which UV absorbing coating is light yellow transparent liquid, and has 25-50% solid and 20-50 s viscosity at cup number 4, UV absorbent monomer is 2-(2-hydroxy-5-(2-(methacryloxy)ethyl)phenyl)-2H-benzotriazole, 2-hydroxy-4-methacryloxy-benzophenone, and 4-methyl acrylic-2,2,6,6-tetramethyl piperidine alcohol ester, solvent is ethyl acetate and/or toluene, and initiator is benzoyl peroxide and/or azodiisobutyronitrile. An INDEPENDENT CLAIM is included for preparation of UV-absorbing coating which involves adding cyclohexyl methacrylate, hydroxyethyl acrylate, UV absorbent monomer, solvent, and initiator in reaction container comprising reflux condenser and stirring device, controlling condenser temperature at 15 degrees C, uniformly mixing under nitrogen protection, gradually heating to 75-80 degrees C, co-polymerizing for 4- hours, and stopping heating.