Abstract: Aiming at the stability analysis in rock and soil engineering, a method combining monitoring, gray prediction with FEM is presented in this paper. At first, a GM(1, 1, model is established, and a gray prediction program is built with Java language, then by analysing the predicted results, a three-dimensional elastoplastic finite element model is established and the stability in the regional area is analysed by using the ANSYS software. The stability of the surrounding rock in Aanqing Copper Mine is analysed by using this method. The predicted results agree approximately with the following monitored results, indicating the precticability of the model, program and the method.