A synthesis of chitosan copper and copper oxides nanoparticles (Cs-Cu, CuO) NPs via electrochemical technique has been reported. Chitosan copper complexes were prepared by electrochemical oxidation technique at duration time followed by reduction using different reducing agents for producing chitosan copper nanoparticles, Cs used as stabilizer and capping agent. The nanocomposites were characterized by using ultraviolet-visible spectroscopy (UV-vis). Transmission electron microscope (TEM) images were investigated emphasized formation the formation of NPs with different shapes. The average size of formed NPs is 28 nm. X-ray diffraction (XRD) is used to investigate the formation of the crystalline structure of prepared samples exhibited presence of copper and copper oxides in the formed complexes and nanocomposites. Analysis of FTIR showed chelation of Cu+2 with chitosan in complex form and electrostatic interaction between chitosan and copper nanoparticles.