Abstract: To predict subsidence caused by mining ore seam of curved surface distribution ,it is usually to take curved surface distribution as plane one approximately. For example, subsidence is predicted by the method for prediction of multi-face mining, with seam of anticlinal structure being simply divided into a few inclined seams. And obviously, the precision of predicted values of ground movement and deformation must be largely lowered. Based on the fundamental principles of the probability integration method, a new method for predicting subsidence is introduced in this paper. The method is established with the aid of curvilinear integral. And also the methods for delimiting integrated ranges and determining calculation coordinates are discussed.