Coal gangue is the solid waste discharged in the processes of coal mining and coal washing,and it is a kind of black gray rock with lower carbon content and harder than coal in the process of coal forming.Coal gangue is one of the largest industrial wastes in China.In this paper,the research progress of high value materials such as aluminum-based chemical raw materials,building materials and porous ceramics using coal gangue is reviewed,and the prospect of its application development is forecasted.