TiO2,photoelectrocatalyst,is deposited on conductive glass through electrophoresis.It is discussed that phenol is degraded by TiO2 at different conditions.It shows that the decomposition ratio of phenol is the highest when the electrophoretic potential is 30 V,electrophoretic time is 5 min,anode potential is 0.5 V,pH is 5 and the concentration of H2O2 is 70 mg/L.