Abstract: In order to objectively and accurately evaluate the efficiency of airport operations, based on Back Propagation (BP) neural network in a single comprehensive evaluation method and gray correlation analysis evaluation method, the evaluation of the value of the minimum variance portfolio of airport operational efficiency evaluation method proposed in this paper. At firstly, the denotation of airport operation efficiency, and a evaluation index system of airport operation efficiency was built, in which the weight s of evaluation indices were determined by combination analytic hierarchy process (AHP) and entropy method. Analysis result indicates that the system is reasonable, the method can apply to the evaluation problem of airport operation efficiency, the evaluation result can reflect the general level of every county objectively, and the relevant authorities of airport can improve its operation efficiency exactly according to the result.