Compared with incandescent lamps, LED lamps and energy-saving lamps, which are characterized with such advantages as high light efficiency, low power consumption and long-life duration, are widely used, but with the potential problem of ultraviolet radiation. With the grating spectrometer used to scan the spectrum of multi-brand and multi-specification LED lights and energy-saving illumination sources, it is found that both of them are rich in strong UV spectrum. By using magnetron sputtering coating method and high-purity ZnO ceramic target, the film is to be sputtered on the quartz substrates with the following sputtering conditions to be met: room temperature, with the power being 180 W, an air pressure of 0.5 Pa, an oxygen argon ratio of 0:8.3, a time duration of 2 hours. With the zinc oxide film applied to the UV protective layer of illumination lamp, its validity and feasibility can be verified by experiments.