Zirconia corundum is prepared by smelting zirconite at high temperature in electric are furnace, It is characterized by tough texture, dense structures, high strength and good thermal shock resistance. As high grade abrasive, it can be used to produce high quality heavy loaded grinding wheel, which has good grinding effect on steel and diversified alloy materials, Furthermore, as a kind of high grade refractory materials, zirconia corundum is an ideal materials for producing high quality sliding gate nozzle and submerged entry nozzle, and can be used to produce zirconia corundum for glass melting furnace.