Abstract: Using grey correlation analysis method, took the statistical data of non-coal mine accident during 2004 to 2008 in China as the example, took the number and death toll of accident as the reference index, through the calculation and analysis of grey correlation degree between violate operating rules, bad environment of production place, short or defective on safety provision and other factors to non-coal mine accident, grey relational order derived from grey correlation degree, main relative factors which influence non-coal mine accident was confirmed, quantitative analysis result on relationship between accident multi-factors and non-coal mine accident was obtained. This method was simple and accuracy was high, provided a kind of comparative scientific quantitative evaluation method for the relationship confirm between non-coal mine accident factors, provided supports for accident main result analysis and master accident occurrence regularity, helpful to reduce the occurrence of non-coal mine accident, ensured normal operation of mine enterprise production.

Key words: Grey correlation analysis, Multi-factors, Non-coal mine accident, Grey correlation degree, Grey relational order