Leakage detection system for aircraft oxygen system and detection method thereof

The embodiment of the invention discloses a leakage detection system for an aircraft oxygen system and a detection method thereof. The leakage detection system is used for detecting whether the aircraft oxygen system leaks or not. The leakage detection system comprises a pressure detection device, a first oxygen supply leakage detection subsystem, a second oxygen supply leakage detection subsystem, an avionics system and a cut-off device. The pressure detection equipment is used for detecting a temperature signal and a pressure signal of oxygen in an oxygen source, and the first oxygen supply leakage detection subsystem and the second oxygen supply leakage detection subsystem are used for sending oxygen use signals detected by the first oxygen supply leakage detection subsystem and the second oxygen supply leakage detection subsystem to the avionics system for comprehensive judgment; the avionics system is used for comprehensively judging whether the oxygen leakage phenomenon exists in the aircraft oxygen sys