Abstract:The traditional mining method selection process was used to determine the optimal mining method for some difficult orebodies, which was prone to the situation that there was no optional mining method or the actual technical and economic indicators were not ideal. To enhance the effectiveness of mining method selection for orebody with a complex occurrence, a set of mining method selection processes integrating mining method innovation and method optimization was proposed by combining theoretical guidance with practical cases. Then, taking the dip angle changing orebody in the northwest of a manganese orebody as an example, aiming at the short-hole shrinkage method selected through the traditional mining method selection process had the problems of difficult ore transportation or ground pressure appearance in the structural area on the inclined orebody with variable dip angle, a mining method of inclined orebody which could adapt to multi-layer and variable dip angle was optimized and designed. The engineering application showed that the method had increased the recovery rate by at least 16%, which provided a better technical choice for the mining method of a manganese mine and provided a reference for the mining of similar orebody.