The index system of preliminary evaluation for coal mine is built on the basis of unascertained math theory, and the rules of incredible recognition and score are given at the same time in this paper.

• 本文根据未确知数学理论,建立了预评价指标体系、置信度识别准则及评分准则,构造了矿井安全预评价未确知测度模型,并对矿井的各个安全指标进行了定量分析。