Polyvinyl chloride (PVC), which is used as one of the most widely polymer, the general purpose plastic in industry, agriculture, household items and many other fields because of abrasion resistance, thermal insulation, and low cost, etc. Nevertheless, PVC can easily change color, degrade under heating or ultraviolet (UV) light radiation because of its structural features and inherent composition, finally limited the application range of the materialist. To overcome these, the zinc- copper -sulphur composite was prepared with ZnO nanoparticle, copper chloride, thiourea and thiophene, then added to PVC solution, composite films were prepared by a casting method. Transmission electron microscopy (TEM), X-ray powder diffraction spectra (XRD), Fourier transform infrared (FTIR) and ultraviolet (UV) spectrophotometr were applied to study the structure and optical performance. The results showed that the functionalized ZnO NPs could endow the PVC composite films with excellent UV shielding capability.