Considering the influence of multiple factors in the recirculating ball steering system, a control and compensation strategy of the electric power recirculating ball steering system is designed. The model of the electric power recirculating ball steering system is established, the current assist curve is designed, and the fuzzy PID control method is adopted, so as to realize the real-time control of the motor. In order to obtain better boosting torque and compensate for the loss in the system, based on the LuGre friction model, the observed system parameters are used to establish the friction state observer, in order to obtain the friction compensation superimposed current. Through the joint simulation verification control system of Matlab/Simulink and CarSim, the comparative analysis before and after adding the friction compensation strategy shows that the designed electric power steering current control system can comprehensively consider the friction, speed and steering wheel angle of the vehicle while it is dri-ving and use the motor to generate appropriate power so as to achieve the driver’s driving intention more accurately and make the return process more stable.