Aiming at the problems of low operation efficiency and insufficient decision-making ability of airports and airlines, a method of assessing flight ground protection capability based on the functional resonance analysis model is proposed; by analyzing the flight protection process, quantifying the relationship between the protection links using interval value hesitation fuzzy entropy and hierarchical analysis, and evaluating the flight protection capability by combining the size and variability of the protection links with the coupling between the links, the optimal configuration of the flight ground protection node is determined. The result is to determine the optimal configuration of the ground protection node of the flight; the experimental simulation is carried out by using the data of the flight ground protection of an airport, and the result shows that: the mean-square error between the actual operation and the expectation is 6.015min, and the average absolute error is 2.389min, and the ratio of the error to the protection time window is about 0.28, which is approximated to the evaluation value of the flight's performance as 1, which is a response to the gap between the actual and the expectation; in addition, the weighting method is changed, and the weighting method is changed to the weighting method. In addition, the average absolute percentage errors of the key nodes of the flight guarantee are lower than 13% and lower than that of the entropy weighting method in the comparison analysis of the weighting methods.