Abstract: The coal mine scores are usually calculated to evaluate the safety quality standardization level in coal mine, while the scores are the comprehensive calculation of the scores of each professional aspect. This evaluation method which  uses a single score to evaluate the security level of coal mine has the problems of failing to reflect the objective situation of coal mine authentically and concurrently, lacking of effectiveness in guiding the construction of safety standardization, and just chasing high marks in regardless of the importance of security precaution. Therefore, it is necessary to use SPA (Set Pair Analysis Theory) to conduct deep analysis of  coal mine security. In this paper, based on the construction of the four level connection function of security standardization evaluation results, the average connection degree, set pair potential, pessimistic potential, and uncertainty of the coal mine are analyzed respectively. Thehe analysis can reflect the preferential order when t achieving the optimal security standardin coal mine, the gap compared to the standard, the trend and potential uncertainty of future transformation in the optimal security standard, et al, which will promotes the construction of safety quality standardization incoal mine more effectively.

Key words: coal mine, safety quality standardization evaluation, set pair analysis theory, depth analysis