The invention provides a high-temperature resistant UV (Ultraviolet) coating material for vacuum plating. The high-temperature resistant UV coating material is prepared from the following ingredients in percentage by mass: 45-65% of prepolymer, 10-25% of reactive monomer, 2-8% of photoinitiator, 0.1-3% of leveling agent and 10-35% of organic solvent. Correspondingly, the invention also provides a preparation method for the coating material. The preparation method comprises the following steps: (a) isolating ultraviolet rays, and carrying out lighting by adopting a yellow-light lamp; (b) thoroughly dissolving the initiator with the organic solvent, and carrying out uniform stirring; and (c) sequentially adding the monomer of a formula amount, the prepolymer of a formula amount and the leveling agent of a formula amount in order under the condition of keeping stirring, and then, carrying out uniform stirring, thereby completing the preparation of the UV coating material. The invention further provides application of the high-temperature resistant UV coating material for vacuum plating. The coating material is coated on a base material, leveling is carried out for 1-2 minutes so as to thoroughly spread and level a coating film, infrared preheating is carried out for 3-5 minutes at the preheating temperature of 50 to 120 DEG C, then, UV irradiation curing is carried out, and the light radiation energy is 2,000-3,500mJ / cm<2>.