Abstract: To research on the safe psychology characteristics of the gas identifiers in coal mine and institute the measurable evaluation criterion for their safety psychology.Some Psychology measurement instruments and a questionnaire was used to measure the safe psychology characteristics of the personnel,above 250,who work in China Coal Mine Construction Group Corporation,at all kinds of special posts.This article focuses on the gas identifiers,because this post is closely related to mine security.The SPSS18.0 statistical software was used to deal with the measurement data.the gas identifiers' safe psychology threshold was attained,the safe psychology parameter criterion was instituted,the safe behavior psychology model and personality structure were established.Taking shape the new selection pattern of miners' safety psychology and the safety management evaluation system,it has a great significance for ensuring mine security,promoting the optimal allocation of human resources in mines,and improving the psychological health level of the group in coal mine.