Hybrid vehicle includes: the engine, the motor of the usefulness of can palingeneticly traveling, it demonstrates following motor characteristic: when the load for the maximum load more than 10% the time, be in motor efficiency under 1.5 times the rotational speed of the rotational speed of high time point, motor efficiency reaches more than 90%, and the derailleur, will power transmission to the wheel actuation axle of engine, wherein, the motor not via the derailleur and connect in the wheel actuation axle.