Abstract:In view of the large scale and many entities of the "human-in-the-loop" and "hardware -in-the-loop" simulation system, a simulation system trustworthiness assessment method based on the two-level fuzzy comprehensive evaluation method is proposed; the trustworthiness of different levels of the aircraft virtual maintenance training system is analyzed by using the hierarchical analysis method. The method of quantitative evaluation is based on the combination of fuzzy comprehensive evaluation method and expert evaluation method, and the quantitative calculation of the virtual simulation training system is realized; on this basis, the method is experimentally verified by using typical examples, which proves that the method can accurately quantitatively evaluate the reusable complex simulation system. Based on this, the method is experimentally validated using typical examples, and it is proved that the method achieves accurate quantitative evaluation of reusable complex simulation system; and the improvement direction of the simulation system is analyzed according to the experimental results, which has an important guiding role in improving its simulation effect and practical training capability.