Abstract: Fuzzy optimization method is an important tool for selecting the disposal method for gob.Some typical methods were evaluated,the critical factors and evaluating indicators effected the selection of disposal method for gob were analyzed based on the god disposal actuality in underground metal mines.A fuzzy optimization model was made to select the disposal method for gob combined with the fuzzy mathematics theory,and applied to Changba Lead-zine Mine.The results of application indicated fuzzy optimization method is useful to analyze and evaluate quantificationally the advantages and disadvantages of the disposal methods,and select the optimum method from them according to the incidental condition of the gob.