Abstract: Using vanadium iron slag and magnesite as main raw material,appling co-grinding,machine press forming,high temperature firing processes,a kind of synthetic refractory raw materials can be produced,which has main phases of corundum and spinel,and it's density greater than 3.0 g/cm³,the rate of water absorption less than 1.5%,and refractoriness more than 1 790℃.It can be used in unfired bricks,castable and other products instead of bauxite and firing spinel and other refractory raw materials.In this process,vanadium iron slag can be used as secondary resource and can realize high value utilization.