Human errors account for the highest percentage of flight accidents. In order to realize the refined management of flight dispatchers' psychological competency and reduce the number of flight accidents, 34 three-level indicators of flight dispatchers' psychological competency characteristics were optimized on the basis of expert research by constructing the flight dispatchers' psychological competency model and sorting out the indicators of the three levels of the model evaluation system. On the basis of enriching and improving the psychological competency model, suggestions on training flight dispatchers' psychological competency model were summarized from six aspects: regular assessment of the mastery of professional knowledge, quantitative analysis of the application of business skills, continuous tracking of the quantitative level of psychological quality of the evaluation system, comprehensive improvement of the self-evaluation system, systematic change of personality quality training program and precise correction of achievement motivation. According to the results of the psychological competency “portrait” and in view of the shortcomings of psychological competence, a personalized supplemental training plan is formulated to scientifically and comprehensively evaluate the psychological quality of flight dispatchers and ensure flight safety.