“Hybrid Copolymerization” has opened up a new way for the synthesis of copolymers, which has important theoretical and practical significance. In this paper, innovative achievements of hybrid copolymerization were introduced. In addition, copolymerization reaction and its mechanism of vinyl monomer and cyclic monomer in the past five years were expounded. The application of two kinds of catalysts (t-BuP₄) and B(C₆F₅)₃ and the application of CF₃SO₃H/nBu₄NI initiator system were reviewed. At the same time, the application field of the hybrid copolymer was introduced, and the development of the hybrid copolymer was prospected.