Abstract: In view of problems of No. 2 coal seam in Dahaize Coal Mine, fuzzy evaluation is used to carry out mining method study for the coal mining face. Based on hierarchy analysis, index evaluation system for large mining height broken coal seam mining scheme selection is established, and the various factors affecting the weights of index system are rationally distributed. Based on fuzzy mathematics and the theory of matrix analysis, fuzzy comprehensive evaluation model is established. Combined with the actual geology conditions of No. 2 Coal Mine, mining scheme is divided into layer mining and sub-level caving mining and large mining height fully mechanized caving mining. After fuzzy comprehensive evaluation, we finally determine that large mining height fully mechanized caving mining is the most reasonable; this is consistent with the actual production mining method for Dahaize Coal Mine.