The removal of chemical oxygen demand (COD) and color of the Sugar industry wastewater (SIWW) was investigated using electrochemical (EC) process iron as electrode material. The process yielded maximum 84% COD and 86% color reduction at current density 178A/m2, initial pH 6 and electrode gap 20mm in 120min of treatment. Effect of various parameters in range initial pH (2–10), current density (39–195A/m2), electrode gap (10–25mm) and treatment time (0–120min) were evaluated on COD and color reduction of SIWW. Energy consumption, electrode loss, filtration and settling of sludge were found to pH dependent. Significant amount of COD and color reduction of wastewater by the process indicates that it may be better alternative to the convention biological treatment. Thermo gravimetric analysis of residue indicates its inorganic nature.