Abstract: In order to systematically analyze the influencing factors of civil aircraft fire accidents and effectively prevent the occurrence of similar accidents，the local control structure of aircraft fire accidents is constructed by using STAMP model based on the aircraft fire accident in flight. Eleven influencing factors of civil aircraft were extracted from fire occurrence and extinguishment. By means of DEMATEL- ISM method, the causality attribute and centrality ranking of the influencing factors were determined, and the multi- level hierarchical structure model of civil aircraft fire accident influencing factors is established. The hierarchical structure of the accident influencing factors was divided into four levels. The results showed that lack of pyrotechnic disposal ability, human error, information interaction obstruction, passive restraint failure and mechanical equipment failure are the key factors of the accident through the centrality ranking of factors, and cognitive defects and insufficient safety education and training are the root influencing factors of civil aircraft fire accidents through the analysis of multi-layer hierarchical structure model.

Key words: fire protection, civil aircraft fire, STAMP model, DEMATEL, ISM