In order to evaluate the scientificity and effectiveness of the decisions made by airline operators to resume abnormal flights under the collaborative decision-making mechanism, combined with the actual situation of the airline, the matter-element model combined with the extension theory is used. Starting from five aspects of crew safety, crew fatigue, overall cost, service guarantee capability and ground delay time, a decision-making evaluation system for abnormal flight recovery is constructed. In view of the shortcomings of the traditional matter-element model, the classical domain and the section domain of the matter-element model are normalized. Since the decision evaluation of abnormal flight recovery is greatly affected by subjective factors, the system index weight coefficient is determined by introducing the entropy weight method to reduce the influence of subjective factors on the evaluation results. And quantitative results prove the scientificity and feasibility of abnormal flight recovery decision. Finally, through case simulation, it is proved that the method can effectively evaluate the decision of abnormal flight recovery under the collaborative decision-making mechanism.