The invention relates to an online navigation equipment monitoring and flight verification system and method based on an unmanned plane. The system comprises a GPS antenna, a GPS positioning system module, an online navigation equipment monitoring and flight verification system module, a sensor module, an airborne computer module and an actuating mechanism module, wherein the online navigation equipment monitoring and flight verification system module comprises a test antenna, a central controller, a signal acquisition processing module, a signal monitoring analysis module and a flight verification module, the modules are embarked on the unmanned plane, the unmanned plane is made to realize flight according to a prescribed flight path to acquire navigation equipment signals, and corresponding monitoring analysis and verification are carried out. The system is advantaged in that through combination with the unmanned plane flight technology, measurement signals of the navigation equipment are made to be objective, comprehensive and effective, the analysis result is more reliable, higher precision is realized, and influence of equipment tests and flight verification on airport operation can be reduced.