Abstarct: In this research we studied the surface morphology, structural, optical, electrical properties and also the photoconductivity effect of ultraviolet (UV.) light in zinc oxide (ZnO) nanostructures grown by thermal oxidation method on: (a) Zn-foil, (b) mextallic zinc laxyer on glass substrate. In physical characterization of the sample we used field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), Optical spectroscopy (UV-Vis), and current –voltage (I-V) measurement. In the first step, using the ZnO laxyers were prepared when Zn-foils were annealed in air atmosphere at 500, 600 and 650 oC for 1 h (section 4-2). In the second step, a thin zinc laxyer was deposited on glass substrate, using physical vapor deposition (PVD) and sputtering methods, and then annealed in air atmosphere (sections 4-3 and 4-4, respectively). The prepared samples in the last two sections in mextal-Semiconductor-mextal (MSM) structure were studied for photoconductivity effect, as exposed to the LED UV. light. In general, the FESEM images of the synthesized samples showed the formation of zinc oxide nanowires on Zn-foil substrate and the synthesized samples by PVD method, and formation of nano-grains in samples synthesized by sputtering technique. The XRD results showed all samples have a hexagonal (wurtzite) polycrystalline structure. From photoconductivity study of the laxyers we found that crystalline defects, special oxygen vacancies, are very effective on light sensitivity of the samples.