Abstract: In order to research the effect of frequency on the hysteresis characteristics of magnetic materials under sinusoidal and DC bias conditions, based on the static J-A hysteresis model, the dynamic J-A hysteresis model considering the influence of dynamic losses on the hysteresis loop was established in this paper. And the hybrid optimization algorithm and loss separation theory were used to extract static model parameters and dynamic loss coefficients. The magnetic performance test system was built to obtain the data of hysteresis and loss characteristics of electrical steel at different frequencies under sinusoidal and DC bias conditions, and the law of the effect of frequency on hysteresis characteristics was analyzed through them. Based on this law, a hysteresis modeling method that can consider the effect of frequency on static parameters was proposed and used to simulate the hysteresis characteristics of electrical steel at different frequencies under sinusoidal and DC bias conditions. By comparing with experimental data, the results show that: the simulated results of the modeling method proposed in this paper are in better agreement with the measured data of hysteresis characteristics than the traditional modeling method, which verifies the correctness and effectiveness of the proposed modeling method.