Through the analysis and research on the application of audio system in general aviation, This paper designs a set of audio management system of general aviation, Which realizes the management and control of all audio signals and the reception of the pointer signal mixing. Voice output and PTT control, and can send alarm signal according to the audio status monitored on the aircraft to enhance the safety of the aircraft. The point-mark receiving power can receive the distance indicating signal from the ground broadcast, and report said generate the distance indication and light alarm for the aviation.