The invention relates to a method and production process for preparing a high-temperature-resistant adhesive tape by applying an ultraviolet light cross-linkable hot-melting pressure-sensitive adhesive to a high-temperature-resistant polyvinyl chloride film, wherein the high-temperature-resistant polyvinyl chloride film is a high-temperature-resistant material containing a liquid polymeric plasticizer, a solid polymeric plasticizer and a heat stabilizer; the high-temperature-resistant polyvinyl chloride film can be directly coated with the hot-melting pressure-sensitive adhesive at 130-150 DEG C, then ultraviolet light is utilized for cross-linking and curing, and therefore, the high-temperature-resistant polyvinyl chloride adhesive tape is prepared. Compared with traditional polyvinyl chloride adhesive tapes, the high-temperature-resistant adhesive tape has the advantages that no volatility, high temperature resistance, high environment friendliness, and the like.