Polyvinyl alcohol (PVA) is a kind of refractory organic matter with poor biodegradability. PVA wastewater drained into water body will cause serious environmental problems. Simulated wastewater containing PVA was treated by electrocoagulation technology in the paper. The effects of current density and electrolyte concentration on removal rate of COD and energy consumption were discussed. The optimum values of the three factors were respectively 5mA/cm2 and 0.012mol/L through experiments.