At the present time, Textile processing is predominant in the industrial sector in Egypt. These technologies are depending on dyeing process, which required a huge amount of pure water, and generates a bulky quantity of wastewater. The wastewater resulted from Textile processing industry is demonstrated high pH and chemical oxygen demand (COD), immense color, high salinity, and suspended particles. In this study, Electrocoagulation method has been used for the treatment of real textile wastewater obtained from a textile factory in 10th of Ramadan city in Egypt (Odiba), using iron electrode as sacrificial electrode. The influence of main working variables such as initial pH of textile wastewater, operation time, and current density were tested to appreciate higher removal efficiency, and less operating cost. The experimental results showed that 95.7%, 99.5% and 84.75% for color, turbidity and COD removal efficiencies, respectively, at the optimum operating condition 10.2 pH, 15 min, and 11.97 mA/cm². The treated wastewater consumed 0.526 Kg Fe/m³, specific electrical energy 4.8 KWh/Kg Fe, and the operating cost were 9.9 Egyptian pound (LE) /m³ of treated wastewater. The removal takes place in acidic pH via precipitation mechanism, but in alkaline pH via adsorption and precipitation mechanism.