Objective Aiming at the problems of insufficient lateral stability and poor control robustness of the four-wheel steering vehicle with the steer-by-wire system an active steering feedback control strategy was proposed. Methods The dynamic model of steering actuator of steer-by-wire system was built in Simulink and the vehicle model of steer-by-wire system was established by co-simulation of MATLAB / Simulink and Carsim. Based on the two-degree-of-freedom model the influence of yaw rate and sideslip angle on vehicle stability was analyzed and the ideal yaw rate and sideslip angle were derived. The desired front wheel angle was obtained by designing the ideal transmission ratio based on the constant yaw rate gain and the fuzzy controller was designed with the yaw rate error as the control variable to obtain the real-time correction of the additional front wheel angle to the desired angle so as to realize the active steering of the front wheel. Aiming at the error between the ideal values and the actual yaw rate and sideslip angle the stability control target was obtained by weighting. The adaptive integral sliding mode feedback control strategy was designed to output the rear wheel angle to track the ideal value and realize the active steering of the rear wheel. Results The simulation results show that the established steer-by-wire system can accurately reflect the dynamic characteristics of the vehicle. Compared with the uncontrolled mechanical front-wheel steering vehicle and four-wheel vehicle with yaw-rate-feedback steering control the steer-by-wire active four-wheel steering vehicle controls the sideslip angle to fluctuate around 0 under the double lane change condition and controls the yaw rate tracking error to be within 1. 149deg / s. Under the angle step condition the steady-state value of the sideslip angle is controlled at 0. 065 deg and the steady-state error of the yaw rate is 0. 074 deg / s. Conclusion The active four-wheel steer-by-wire control strategy has remarkable control effects and good robustness under double lane change and angle step conditions which effectively improves the handling stability and active safety of the vehicle.