Abstract: In view of erosion of furnace hearth and bottom and increase of water temperature difference of cooling wall,titanium-containing sinter instead of titanium ore is used for furnace protection. Through calculation of titanium balance in the blast furnace,titanium content in hot metal in the furnace is controlled,and reasonable operation system and smelting parameters are selected. The production practice shows that the temperature at the side wall of the furnace hearth and water temperature difference of cooling wall decrease,which realizes the effect of furnace protection as well as effective and lowcost production.