Firstly, defines and classifies the dispatcher’s human factor error, then combines the actual situation in the dispatcher’s release work and improves on the basis of the HFACS theoretical model proposed by the US Navy, and proposes HFACS error model for the release work of the dispatcher. Then introduces the data processing method based on this model---the gray correlation theory method. The gray correlation analysis was carried out on the data related to the unsafe incidents of the dispatchers collected by the airline survey, and the ranking of each influencing factors was obtained. Finally, based on the model, combined with the degree of relevance ranking, the measures and countermeasures to reduce the error of dispatching people are proposed.