Abstract: Polycarbonate (PC) is an engineering plastic with excellent comprehensive properties, in order to expand its application range, improve the toughness of PC through toughening modification, the latest research progress of PC toughening modification in recent years is reviewed, and its toughening modification methods are classified and summarized. It mainly includes toughening modification of elastomers, toughening modification of inorganic rigid particles, and toughening modification of organic rigid particles. The application of PC and its modified products in the fields of automobiles, building materials and aerospace was introduced, and the prospect of PC toughening and modification was prospected.