A copolymer of polystyrene-acrylonitrile was modified with fullerene C 60 using gamma irradiation technique to produce a new copolymer with high quality in physical and chemical properties and using to fabrication a working electrode alternative for the modification of commercial working electrode in cyclic voltammetric technique (such as glassy carbon electrode, Pt, Au electrode). The new copolymer electrode self-modified with C 60 (CESMC 60) was characterized electrochemically by cyclic voltammetric method using a standard solution of 0.3 mM K 4 [Fe(CN) 6 ] in 1 M KCl to evaluate the redox current peaks of Fe(II)/Fe(III). The electrochemical and physical properties of the new fabrication electrode has good hardness, insoluble in aqueous and non-aqueous solvent, electrochemical stability, resistance to high temperatures and different pH. It was found that 0.3 mM of K 4 [Fe(CN) 6 ] in 1 M KCl of the new electrode at different concentration using reagent, scan rate, pH, temperature, electrolytes, stability and reliability. The new electrode was given encouraging properties for using in high-precision analysis and resuscitates commercial electrodes such as glassy carbon electrode, platinum electrode, gold electrode, and so on. Keywords: cyclic voltammetry, copolymer electrode modified C 60 , K 4 [Fe(CN) 6 ], redox process Kulcsszavak: ciklikus voltammetria, C 60 módosított kopolimer electróda, K 4 [Fe(CN) 6 ], redox eljárás