In order to build subway station fire emergency group decision-making system, Aim at the subway station fire characteristics in this paper, analyze the problems of emphasis from emergency decision, and group decision method is proposed to use to solve this problem. The method can avoid failure of the overall decision making mistakes because a single decision maker. Found of decision-making group consist of experts, academics, policy-makers, considering several key factor such as professional, academic, expert ratings, weight, to build group decision model .At the same time, evaluation of the subway station fire emergency group decision effectiveness to build subway station fire emergency response system, Ultimately improve the efficiency of emergency response and level of decision-making for subway station.