Mileage-extending type electric motorcycle

The invention discloses a mileage-extending type electric motorcycle, which comprises a frame and a storage battery pack. A driving wheel driven through a wheel hub motor is arranged at a lower part of the frame; and the storage battery pack supplies electric power to the wheel hub motor. The mileage-extending type electric motorcycle is characterized in that the motorcycle is provided with a whole motorcycle controller; the whole motorcycle controller carries out real-time detection on remaining battery capacity of storage batteries; and the motorcycle is further provided with a mileage extender, wherein the mileage extender comprises an internal combustion engine and an ISG (Integrated Starter and Generator) electric machine which are connected with each other through a connection shaft, after the whole motorcycle controller detects that the remaining battery capacity of the storage batteries is lower than a designated value, the internal combustion engine runs at a constant rotating speed after the internal combustion engine is started up, so that the ISG electric machine is driven to generate power, the power is supplied to power-consuming equipment of the motorcycle, and a rechargeable battery pack is charged by using remaining electric power. The mileage-extending type electric motorcycle has the advantages of simple and compact overall design and convenience in operation, the storage battery pack can be ensured to supply power for operation in most instances, and the mileage extender only works if necessary, so that the service life of the battery pack is prolonged to the maximum, and the target of low energy consumption and zero emission (or least emission) is realized.