Gangue is a solid waste generated during coal mining and processing. After being processed by crushing and grinding equipment, large pieces of gangue have shown great application potential in many fields. Under the current dual needs of resource conservation and environmental protection, the effective use of gangue has become one of the important measures to promote sustainable development, and it is also an important way to practice the concept of green development and realize resource recycling. We should actively explore innovative technologies and methods, continuously improve the level of utilization of gangue in the field of building materials, and jointly contribute to the construction of a resource-saving and environmentally friendly society.