The researches on the emergency management capability evaluation mostly focus on the evaluation methods, models and etc., pay less attention on the influences varying from the emergency type, lack of dynamic and low participation of scholars and the public. A new method of emergency management capability evaluation was put forward by combining Formal Concept Analysis (FCA) and Analytic Hierarchy Process (AHP) to figure out those problems. FCA was used to assign the first level index weights because of its outstanding ability on processing the data and extracting the rules, while AHP was used to take into the various factors. Then, Fuzzy Comprehensive Evaluation (FCE) was used to draw the evaluation results. As a result, the index weights had been varied which are constant in the traditional one. And the dynamic characteristic of the evaluation was also achieved. Finally, experiments show its feasibility and effectiveness.