Abstract: The purpose of this study is to establish a superplastic deformation constitutive model of ZK60 magnesium alloy. Through high temperature tensile experiments at different temperatures ( 250-400℃ ) and strain rates ( 2×10^-4s^-1 to 1×10^-2s^-1 ), a hyperbolic sine function strain compensation correction model based on Arrhenius constitutive equation was proposed. The experimental results show that the flow stress decreases obviously with the increase of strain rate and temperature at high temperature. At the same strain rate, the flow stress gradually decreases with the increase of temperature, and the alloy exhibits higher ductility at lower strain rates. The model can accurately describe the ' first hardening and then softening ' process of the flow stress of ZK60 magnesium alloy. The correlation coefficient R predicted by the model is 0.98529, which shows good consistency with the experimental data. In addition, through the analysis of the model, it is found that the superplastic behavior of ZK60 magnesium alloy is significantly affected by temperature and strain rate, especially at high temperature and low strain rate, the alloy exhibits good plasticity. The research results provide a theoretical basis for the superplastic forming of ZK60 magnesium alloy and an effective tool for its application in numerical simulation.