Impurities in phosphogypsum(PG) on the properties has influenced its utilization greatly.Researchers hold that the impurities in PG must be pretreated due to its deleterious effect.However,the possible utilization of impurities in some applied conditions is hardly involved.This article describes the effects of impurities on phosphogypsum,and discusses the possible utilization of the impurities,provids theory for the pretreatment of impurities in PG.