The purpose of this study is to test the color removal efficiency of dye wastewater with Fe, Al and Cu electrode and to determine to the optimum conditions of the electrolysis. The dye wastewater consists of a single colored acidic dye of red, yellow or blue with a concentration from 50ppm to 200ppm. The results showed that the combination of Fe(+) and Al(-) electrodes was best for the colour removal efficiency. And, it show that combination electrode is capable of removing more than 99% of the colouring material at current density 0.06A/cm2, 0.1% NaCl concentration and a distance of 1.5cm between the electrodes. The colour concentration of dye solution was measured by UV․visible spectrophotometry. Optimal operating conditions such as reaction time, concentration of electrolyte and dye wastewater, kinds of electrodes and current density have been determined.