Emergency oxygen supply and production method for passenger train

The invention relates to an emergency oxygen supply and oxygen generation method for a passenger train, which is characterized in that each passenger train is provided with an emergency power supply and an oxygen generator comprising a compressor, and the passenger train is provided with a dispersion oxygen supply pipeline and a distributed oxygen supply pipeline which are connected with the oxygen generator; an emergency power supply control line penetrating through the train is arranged, oxygen generators of all the trains are connected with the emergency power supply control line and connected into a train network at the same time, when the emergency power supply control line is powered on, an emergency power supply supplies power to the oxygen generators, and the oxygen generators enter an emergency oxygen supply mode, namely, a dispersed oxygen supply interface is closed, and a distributed oxygen supply interface is opened; and the oxygen generator receives the emergency online instruction from the train