The The development of society and economic increases the demand of electric power with more stability in power system. Therefore, research on emergency management for power system is of great theoretical and practical significance to reduce their occurrence and the losses they bring. Based on the general theory of emergency management and combined with the characteristics of grid emergencies, the model of entropy weight fuzzy comprehensive evaluation for grid enterprise emergency management ability based on confidence criterion is established. Through the empirical study on a northern grid enterprise, it indicates that using this research method can get levels of grid enterprise emergency management ability efficiently.