Corundum mullite brick is made from high purity white fused alumina, fused mullite,brown corundum and zircon sand as main raw material, and be added with little amount of a alumina powder as binder, it is shaped by high pressure and sintered at high temperature. The main mineral constituent includes mullite and corundum phase, with excellent high temperature physical performance and chemical erosion resistance. It is widely used in high temperature furnace, steel making and casting, refuse incinerator and other high temperature industry furnaces.