The ring-opening copolymerization reaction of epoxides with cyclic anhydride (ROCOP) plays a crucial role in the preparation of polyesters. In this thesis, the amino-modified metal-organic framework material UiO-66-NH2 was synthesized, and the ring-opening copolymerization of epoxide with cyclic anhydride catalyzed by the UiO-66-NH2/Lewis acid-base binary system was investigated. It was shown that the UiO-66-NH2/PPNCl catalytic system presented the best catalytic performance, and the ester bond content in the prepared polyester was up to 99.9%. Meanwhile, the effects of temperature, catalyst ratio and co-catalyst on the ring opening copolymerization reaction were investigated. The kinetic study showed that the reaction was a first-order kinetic reaction with an apparent activation energy Ea of about 66.51 kJ?mol-1. The cycling test proved that UiO-66-NH2 had good physical and chemical stability, and could be reused 3 times without decreasing the catalytic activity.