The work aims to provide some basic data and theoretical guidance for the development and research of green water-based coating and surface adhesive based on the research in the curing behavior of hydantoin epoxy resin. A new type of hydantoin epoxy resin was synthesized, and hydantoin epoxy resin/HHPA resin was prepared by using hexahydrophthalic anhydride (HHPA) as curing agent. The curing behavior under different heating rates was studied by differential scanning calorimetry (DSC). The mechanism of curing reaction of hydantoin epoxy resin/HHPA resin system was determined by Melak equivalent conversion equation and two-parameter (m, n) autocatalytic model respectively. The curing reaction kinetics equation was got by related kinetic parameters. The new epoxy was prepared with the epoxy value of 0.65, the inorganic chlorine content of 0.000 673 eq and the organic chlorine content of 0.0274 eq respectively. The apparent activation energies of hydantoin epoxy resin/HHPA system were 82.2 kJ/mol and 83.7 kJ/mol, respectively. Ozawa-Flynn-Wall method and Friedman-Reich-Levi method were used to calculate the resin system reaction Series, n=1.531, m=0.68, before the factor A=1.75×1010, the established the curing kinetics equation was. The curing reaction of hydantoin epoxy resin/HHPA was carried out according to the autocatalytic reaction mechanism. The kinetic model of curing reaction of hydantoin epoxy resin was established. The established curve of the curing reaction kinetics model is in good agreement with the experimental DSC curve. The curing reaction process of the epoxy resin/HHPA system can be well described within the scope of this study.