Copper slag is a kind of high-silicon and high-iron industrial waste produced in the process of copper smelting and zinc hydrometallutgy.It has many valuable components and it is a potential secondary resource.Based on the latest research progress at home and abroad in recent years,the extraction and recovery of valuable components from copper slag,including copper dilution recovery,iron recovery and recovery of other valuable components have been introduced.At the same time,the progress of preparing glass ceramic matericals,building materials and other high value-added products with copper slag is reviewed,the utilization status of copper slag at present is summarized,the existing problems are pointed out,and the application prospect is forecasted.