Fire clay brick for blast furnace is used in the part of throat, stack, hearth, bottom for a small blast furnace and the stack for a big blast furnace. The main features: High compressive strength in normal temperature, High ability for anti-abrasion during work, Low shrinkage degree under high temperature so as to maintaining an integrity of the furnace lining; Low apparent porosity, and Fe2O3 content to reduce the carbon deposit in the blowhole and avoid the bricks broken in case of expansion; Seldom melting point settings shape.