Abstract: Based on the complexity of geological conditions for coal mine production in Panjiang Mining Area of Guizhou Province, in order to solve the problem of safety production caused by the shallow identification of geological structure, the gray fuzzy comprehensive evaluation method was used to evaluate the complexity of t he geological structure of coal measure strata in Panjiang Mining Area. This paper presented a method for evaluating the complexity of geological structure. The results show that 12 th coal seam is divided into 65 evaluation units. The evaluation results of geologic tectonic complexity are 18, 7 and 40 for the evaluation of grade I, I a nd皿respectively, and the vertical distribution is obvious. The results of the evaluation are basically consistent with those already revealed in the actual production pro cess. Combined with the gas content and gas emission characteristics of the later mining area, it is helpful to the decision-making of gas disaster prevention and control in this area.