Abstract: Graphene oxide samples were prepared by modified Hummer’s method and the samples were investigated structurally and chemically by X-Ray Diffraction (XRD), Atomic Force Microscopy (AFM) and Fourier Transform Infrared spectroscopy (FTIR). The optical properties of polymer composite GO-CuPc (Graphene Oxide-Cupper Phthalocyanines) prepared by spin coating technique were studied. Three ratio of graphene oxide added to the pure cupper phthalocyanines (10, 15 and 20%). The tests of UV-VIS spectrometer of the wavelength range for which absorption spectra have been recorded is 300-900 nm. For indirect allowed and forbidden transition the absorption coefficient, extinction coefficient and energy gap have been determined. Results show an increasing in absorption coefficient and extinction coefficient and decreasing in the energy gap with the ratio of graphene oxide.