Abstract:In order to improve the control capabilities of civil air traffic controllers and reduce the “errors, forgetfulness and omissions”incidents,based on the social facilitation effect,monitoring status and task difficulty are taken as independent variables,the controller's capabilities to deploy control interval, understand control intentions, aircraft identification capabilities and control errors are taken as dependent variables,an in-group design of 2×2 was adopted, and the experimental platform was built by tower simulation software.The experimental results show that the social facilitation effect has a significant impact on the controller's capabilities to deploy control interval and understand control intentions, but no significant impact on aircraft identification capabilities with the different task difficulty. Further significant impact on controller control errors.To improve the control level of the controller,the Air Traffic Control Units may adopt measures such as installation and monitoring in control on-site.