Aiming at the problem of poor following effect of actual load and expected load during fatigue test of wind turbine blade components,a synchronous control strategy combining advanced self-correction and improved linear active disturbance rejection was proposed.In this method,the actual load was self-corrected,and the system error and external disturbance were input to the improved linear active disturbance rejection controller(LADRC),so as to achieve effective control of the loading force and frequency.Then,the control algorithm of electro-hydraulic servo system in fatigue test was simulated and analyzed.Finally,a field test platform was built to validate the synchronization control strategy.Simulation and experimental results show that:in the process of large load fatigue test,using the control strategy significantly improves the fast responsiveness and anti-interference ability of the system,and the load error is controlled within 1%.Compared with the traditional ADRC control algorithm,the synchronization error is reduced by 56.14%,so the accurate control of fatigue test load of wind turbine blade components is effectively realized.