Abstract: Based on mutation optimization theory，a catastrophe fuzzy subordinate function is produced by adopting the mutation theory and the fuzzy math.Recursive calculation is calculated separately according to normalization formula，obtaining the total function values for different mining method separately.Analysis and evaluation on selecting different mining methods are realized.The advantage of this method is that its target weight is determined by the intrinsic mechanism of the normalization formula based on mutation theory，so as to avoid the weight determining problems in multi-objective decision-making method and to reduce the subjective evaluation factors by the personnel.Engineering example shows that the application of mutation theory to optimize mining method is reasonable and feasible.

Key words: Mutation theory, Mining method selection, Normalization, Influence factors