In this paper, the detailed investigation on related to the structure, morphological and optical properties of Solgel spin coated ZnO-CdO thinflim films is carried out. Solgel spin coating was used to create potential Zinc Oxide (ZnO) and Cadmium Oxide (CdO) alloy (ZnO-CdO) films for solar applications. X-ray diffraction (XRD), UV-vis, and Raman spectroscopy were used to carefully study the characteristics of these films. And the thickness of the prepared thin flim were measured mechanical stylus profilometer. Theoretical properties of prepared ZnO-CdO thinflimare calculated Bruggmen’s method and transfer matrix method and compared with experimental result. These investigations indicate that Solgel spin coated ZnO-CdO thin films have an appropriate band gap, a low defect density, and low strain. These findings will aid in the development of highly efficient photovoltaic devices by helping to narrow the ZnO band gap to a stoichiometric concentration and causing it to shift from the red to the green area with longer wavelengths.