Abstract: The isothermal compression tests were conducted for aluminum white copper with the temperature range of 750-950℃and strain rates range of 0.01-10 s^-1 at Gleeble-3500 simulator,and the true stress-true strain curves of the aluminum white copper alloy were obtained. Based on the experimental results, the modified Johnson-Cook (J-C) model coupled with strain, strain rate and deformation temperature was adopted to analyze the flow stress behaviors of the alloy. It was fitted and analyzed with the model.The constitutive equation of flow stress was established and verified.The results show that the J-C constitutive model can accurately describe the effect of processing temperature and strain rate on the flow stress of the material, and the predicted results at low strain rates are in good agreement with the experimental data. Combining the thermal processing map and the microstructure, it can be determined that the optimal deformation temperature of the aluminum white copper alloy is 820-920℃, and the strain rate is 5-10 s^-1.