Abstract: This study develops an evaluation model for analyzing environmental protection performance of airports. First, indicators for evaluating environmental protection at airports are derived by reviewing related literature and existing environmental management plans using the Fuzzy Delphi method. Then, the weights and value functions of these indicators are obtained through expert questionnaire surveys. Applying the value functions to the environmental data from different airports yields the value of each indicator. Finally, multiplying the values with their corresponding weights sheds light on the performance of individual and overall indicators. Findings of this study offer references for airport management in evaluating airport performance in energy conservation, carbon reduction, and implementation of environmental protection measures, as well as in developing performance improvement schemes according to the state of the airport.