Abstract: In order to accurately evaluate standardization grade for non-coal mine safety, a variable weight matter-element extension model of safety standardization for non-coal mines was built based on variable weight theory and matter-element extension theory. Sixteen factors were selected as evaluation indexes in four areas: safety regulation, safety assurance, safety production and safety performance. The variable weight theory was used to determine the weight of evaluation indexes. Then the rankings of mine safety standardization could be determined by the closeness degree of the evaluated elements to each evaluation level and the eigenvalues of rank variables. Finally, sensitivity index that has a significant impact on the evaluation was evaluated through sensitivity analysis. It was calculated that the safety standardization grade of a non-coal mine was Grade Ⅱ and was more inclined to Grade I, and safety management of the production process system was the sensitive index. The results showed that the variable weight matter-element extension model was an effective improvement of the traditional one, which could improve the accuracy of non-coal mine safety standardization evaluation.