A casting material for the internal working liner of industrial reduction furnace is prepared from aluminium oxide for insulating layer, high-Al material for intermediate layer and the compact corundum, zirconium mullite, chromium oxide, superfine zircon powder, Al2O3 powder and calcium aluminate cement through weighing raw materials except calcium aluminate cement, stirring, loading in bag for future use, casting external insulating layer, casting mediate layer and casting working liner, which includes proportionally mixing said mixture with calcium aluminate cement, adding water, stirring, moulding, vibrating, demoulding, natural curing and baking.