Abstract: The impurities in phosphogypsum and its harm to the environment were introduced, and the advantages and disadvantages of the widely used pretreatment methods were analyzed in this paper. The application of phosphogypsum in the fields of cement retarder, building materials, agriculture, the production of sulfuric acid co-production cement, soil improver, storage and backfill treatment were comprehensively summarized. Finally, according to the problems existing in the utilization process of phosphogypsum, some reasonable suggestions were put forward in order to contribute to its the utilization