The invention discloses a hybrid power driving system, and belongs to the field of hybrid electric vehicles. The hybrid power driving system comprises an engine, a first motor, a second motor, a firstclutch and a planetary gear train; the first motor and the second motor are electrically connected in parallel; the engine, the first clutch and the planetary gear train are in sequential and transmission linkage through a first transmission shaft. The portion, between the first clutch and the planetary gear train, of the first transmission shaft is sleeved with the first motor, and meanwhile, the first motor is fixed to the body of an automobile and is in transmission linkage with the planetary gear train; the second motor is in transmission linkage with wheels. The planetary gear train is used for enabling the rotating speed of the engine and the rotating speed of the first motor to form the preset speed ratio. The system can lower the oil consumption and save the cost; due to the design of the dual motors, even when the power of the engine is not large enough due to the fact that the oil consumption of the vehicle is excessively large, the insufficient power can be supplemented bythe second motor, the wheels are driven by cooperation of the first and second motors to rotate, and normal running of the vehicle is ensured.