The invention designs a hydrocarbon fuel ignition type zero nitrogen rotor machine with oxygen as an oxidant and a control method of the hydrocarbon fuel ignition type zero nitrogen rotor machine. A fuel flow meter (3), an oxygen flow adjuster (9) located in an oxygen conveying pipeline and a gas flow adjuster (15) are adjusted by using the rotating speed of an engine as a signal and combining signals of an oxygen concentration sensor (7) and a CO concentration sensor (14), the peroxygen concentration coefficient of the rotor engine is maintained in an appropriate range, the combustion efficiency of the engine is improved, nitrogen in intake air is removed in a pure oxygen intake method, emission performance of the rotor machine is improved, and zero nitrogen emission of the rotor machineis achieved. Since the device adopts the clean oxidant, the defect that nitrogen in intake air generates nitrogen oxides (NOx) in the high temperature environment in a cylinder of a traditional engineis overcome, and therefore zero emission of the engine is achieved.