Environmental prediction in metal mine has been the main problem which interferes with mining working at depth. And its corresponding formation mechanism is so complicated that the environmental prediction theory cannot come up with the practical engineering research. So it is necessary to establish the corresponding geological structure stress model of the mining area studied, analyze its mechanism and put forward the prediction of environmental prediction location in mining area. Based on the corresponding geological structure stress data of chongqing mine in Sichuan, this paper establishes the three-dimensional finite element modeling with numerical simulation, in order to calculate, analyze and predict the structure stress and the location where the environmental prediction may occur within the range of 3 kilometers in this mine.