Abstarct: In this thesis, ZnO / CuO core-shell nanocomposites were prepared with three methods: sputtering, physical evaporation (PVD) and chemical vapor deposition (CVD). Then the structural, optical and electrical properties of the prepared spec were examined. Investigation of the X-ray diffraction patterns for samples confirmed mixture of the formation of a hexagonal phase for the Zinc oxide and a monoclinic phase for CuO. The optimal resivits from the optical properties of the core-shel samples showed that the band gap are biger than CuO and smaller than ZnO, in the range of 2.05 eV- 2.13 eV. Also the samples synthesised by CVD and PVD methods have the lowest and highest reflectance respectively. Photoluminescence spectra at room temperature, showed that the samples prepared with PVD method has more strogest peaks in the visible (452 nm) and ultraviolet regians (364nm). The results of electrical studies also indicated that the ZnO / CuO samples synthesized by Sputtering and CVD method had the lowest and the highest electric resistivity respectively. The optical response measurements of the samples revealed the sample prepared by sputtering method has greater response compare to the other two methods.