In order to explore and evaluate the elements of the safety supervision ability of civil aviation supervisors, 20 evaluation indicators such as investigation and research ability, knowledge of laws and regulations, making inspection plan and self-confidence are obtained by summarizing the relevant literature of civil aviation supervisors, combing the laws and policies, analyzing and interviewing the supervision posts. The dimensions of evaluation indicators are extracted by exploratory factor analysis, and the weight of each evaluation indicators is determined by analytic hierarchy process. Finally, combined with fuzzy comprehensive evaluation method, the model is empirically analyzed and evaluated. The results show that the assessment results of the ability evaluation model basically agree with the actual safety supervision ability of civil aviation supervisors, and can more objectively and accurately quantify the safety supervision ability level of their supervisors.