▎ 摘　　要

NOVELTY - Degradable polyester composition comprises, polyester polymers, and atomic catalysts which includes single-atom catalysts and/or di-atom catalysts. USE - The degradable polyester composition is useful for degrading polyester polymer (claimed). ADVANTAGE - The degradable polyester composition is capable of realizing efficient, stable degradation and circulation of polyester polymer. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for degrading polyester polymer comprising contacting the combination of polyester polymer and atomic catalyst with alkali liquor to degrade the polyester polymer through hydrolysis reaction, the atomic catalyst includes single atom catalyst and/or a dual atom catalyst.