nfluence of medium,temperature and state of surface on the electrochemical behaviour of the anode Ru2O-TiO2/ Ti has been studied in detail by electrochemical methode.And by engineering practice in all four years through the application effect of the anode has been observed. The results show that the electrochemical performance of the anode is stable,and the engineering application effect is very good.The anode Ru2O-TiO2/Ti can be applied widely in cathodic protection.