The invention discloses a rotor engine electronic control unit control method applicable to a gasoline rotor engine in gas inflow channel injection. According to the work principle of a rotor engine,an engine electronic control unit control strategy is designed around two-way crankshaft position sensors, and comprises a software time correcting and oil spraying ignition control strategy of an electronic control unit and a double-rotating-speed redundancy diagnosis strategy; by analyzing measured values, which speed measuring channel breaks down is judged; then oil spraying delay time and ignition delay time are calculated; next, the starting time moment of an oil sprayer is determined; and after the oil spraying delay time, the oil sprayer is opened to perform oil spraying action, the ignition delay time determines the starting time moment of engine ignition magnetizing, and a sparking plug performs discharging ignition after magnetizing ends. Due to the method, ignition and oil spraying time correcting of the rotor engine can be accurately controlled, a fault occurring onto the crankshaft position sensors can be analyzed, and corresponding treatment is performed according to eachfault. Running of the rotor engine is stable and reliable.