Abstract: Due to the complexity and diversity of the factors affecting sortie generation of carrier aircraft, it is difficult to obtain an objective evaluation result by using the analytic hierarchy process (AHP). In this paper, a two-level evaluation method based on the combination of reduction and sudden change progression is proposed. Firstly, the reduction is used to convert the related indexes into independent components. Secondly, the sudden change progression is used to deal with the reduction of the principal components. Finally, the “Nimitz” aircraft carrier data in 1997 are taken as an example. The evaluation results are compared with the analytic hierarchy process to verify the effectiveness and reliability of the proposed method. The method is easy to implement and eliminates the influence of the correlation between the evaluation indexes, which can greatly reduce the subjectivity of the evaluation. The problem that the traditional evaluation method is difficult to deal with the conflicting objectives is solved by the proposed method.