Abstract: Aimed at the engineering accident that many wind turbines cannot run normally due to the serious tilting of the tower caused by wind-induced fatigue damage of the foundation concrete,a method for rectifying the tilting of the foundation ring by jacking action is proposed,which is not only simple but also safe and effective. According to the tilting and swaying mechanism of the wind turbine tower,a mechanical model of rectifying deviation of wind turbine tower is established based on the principle of bending moment balance,the calculation method of maximum jacking force is calculated. By comparing with practical engineering,the maximum calculated jacking force is consistent with the maximum jacking force measured in 18# wind turbine tower at Hunan province wind farm.The successful and unsuccessful experience of rectifying the deviation of jacking 18# and 10# wind turbine towers are summarized. It is suggested that the time of rectifying the deviation should be chosen when the tower cylinder tilts seriously and appears swing shape.Before rectifying the deviation,the original state of the wind turbine foundation must be guaranteed,and unnecessary disturbance must be avoided,which will cause difficulties in the reset of the tower. At the same time,the displacement and strain monitoring should be carried out at the place where the foundation ring has the maximum stress during the whole correction process to ensure the safe and controllable jacking process. The results of one year’s regular inspection of 18# wind turbine after rectifying and strengthening show that the rectifying and strengthening scheme based on foundation ring jacking is feasible which can be widely promoted.