Abstract: A 750 kV transmission line tower located in the coal goaf inclined due to the uneven subsidence of the foundation.Through site survey of the coal goaf, the probability integral method is used to calculate and predict the maxima and minima of surface movement and deformation.The paper qualitatively evaluates the stability and safety of the tower base, so as to put forward the tower corrective measures.After operation verification, the technical solution of “replacing footing structure plus adding pad plus installing lifting plate” is effective and can provide a reference for similar projects.