With the rapid development of China's economy in recent years, the demand for general aviation has gradually increased, but the effective surveillance and guarantee system for general aviation still needs to be improved. More specifically, the problem that general aviation cannot effectively track and monitor in real-time needs to be solved. Accordingly, ADS-B system is characterized by the wide monitoring range. Based on that, the general aviation monitoring system software is designed. From the perspective of functional design and system architecture of the software, the key technologies of the general aviation surveillance system software is introduced in the paper. In conclusion, the ADS-B message data show that the designed and developed General Aviation Surveillance System software can effectively monitor general aviation aircraft.