Lucid waters and lush mountains are invaluable assets. Protecting the ecological environment is also an inevitable requirement for China to build a well-off society in an all-round way. However，in recent years，the situation of water pollution prevention and control in the Yangtze River Basin are still very grim. In the upper reaches of the Yangtze River，hundreds of millions of tons of phosphogypsum accumulated by phosphate fertilizer enterprises have become a major source of land and water pollution. For example，the control of environmental pollution of phosphogypsum has been a very difficult problem. The pollution of phosphogypsum in the middle and western regions of the upper reaches of the Yangtze River has a long history. There are many reasons for this situation，but essentially are the slow technological progress and lack of technological innovation in the utilization of phosphogypsum resources. Jiangsu Yifu Science and Technology Co.，Ltd. is a private high-tech enterprise focusing on the field of resource utilization of industrial by-product gypsum. Since establishment，the company has taken solving industry problems as its responsibility. It has invested a lot of manpower and material resources in the field of resource utilization of phosphogypsum. After years of scientific and technological tackling，it has successfully explored a way to produce insoluble anhydrite with phosphogypsum. New technology of gypsum. Type II anhydrous gypsum produced can be used not only for plastering gypsum，gypsum block，gypsum board and other gypsum building materials，but also for producing gypsum slag composite cementing materials and gypsum slag cement（also known as supersulfate cement），thus further expanding the application field of phosphogypsum. This new phosphogypsum resource utilization process is expected to solve the problem of phosphogypsum in China and brings new ideas for large-scale resource utilization.