Abstract: In order to discuss the scheme of recovering the remaining lowgrade ore bodies at the edge of the original stope in Taibai Gold Mine,through the analysis of AHP and FUZZY theory,9 factors that have a significant impact on the residual mining project were selected and optimized.The model uses the analytic hierarchy process to determine the weight of each evaluation index.The fuzzy mathematical method is used to analyze and calculate the qualitative and quantitative indicators of each mining method to obtain the membership degree of each evaluation index.Finally,the comprehensive preference of the three engineering layout schemes is calculated.They are 68.1%,69.3%,and 58.1% respectively.Therefore,the twopath layout along the ore body is determined as the optimal mining plan.Practice has shown that the optimal engineering layout scheme using this model is scientific and reasonable,and it is worth learning and promoting.

Key words: Residual ore recovery,AHP,Index quantification,FUZZY