［Objective］To investigate the curing kinetics of the curing process for a waterborne epoxy-amine system，establish a more accurate thermal kinetic model，and provide guidance for the formulation design of waterborne epoxy coatings.［Methods］Based on differential scanning calorimetry（DSC）test data for the curing of a two-component waterborne epoxy resin and the Kamal-Sourour（KS）model，a KS & diffusion model（abbreviated as KS & diff）was developed by incorporating a Williams-Landel-Ferry（WLF）equation-based diffusion correction. Furthermore，combining the KS-diff model with DSC isothermal testing，the Time-Temperature-Transformation（TTT）diagram for this waterborne epoxy resin curing was constructed.［Results］ The KS-diff model achieved 97. 8% agreement with the experimental DSC data for simulating the curing kinetics of the waterborne epoxy-amine system. The experimentally determined degree of cure from isothermal tests agreed well with themodel predictions. Furthermore，the curing states predicted by the TTT diagram correlated well with thecoating's hygrothermal resistance performance.［Conclusion］ The KS-diff model can effectivelysimulate the curing kinetics of the waterborne epoxy-amine system and provide valuable guidance forformulating waterborne epoxy coatings.