In order to effectively prevent human error accidents, the influencing factors of human error in airborne ammunition technical preparation were analyzed by Delphi method. The hierarchical structure model of human error influencing factors is constructed, and the similarity of expert evaluation results is used to determine the weight of experts, and the fuzzy analytic hierarchy process (FAHP) is used to analyze the human error influencing factors. The airborne ammunition support of an exercise is analyzed as an example. The example results show that the quantitative analysis of the human error influencing factors of airborne ammunition technical preparation and the priority control sequence of the influencing factors can provide more important significance for the follow-up study to formulate avoidance measures, prevent human error accidents and successfully complete the combat training mission.