Abstract: In the practice,it is always necessary to predict the area of subsidence trough and the area of dangerous deformation prior to mining activity.The paper introduces the method of prediction:First to determine the coordinates of boundary points of subsidence trough and deformation area by means of surface shift prediction,give out the calculation formulas.Then conduct the calculation by means of data integration using computer.In this way,the prediction procedure is automatized.Since the predicting method introduced in the paper is suitable for folding structural strata and working face of any shape,it can be widely applied to any mine.