Hybrid power drive system for four-wheel-driven hybrid vehicle

The utility model relates to a hybrid power drive system for a four-wheel-driven hybrid vehicle. The hybrid power drive system comprises an internal combustion engine, a first motor and a first change transmission case, wherein a first motor rotor is fixedly connected with a primary shaft of the first change transmission case and a second shaft of the first change transmission case is connected with a first driving shaft. In addition, the hybrid power drive system is also provided with a second motor, a second change transmission case and a main clutch, wherein a second motor rotor is fixedly connected with a primary shaft of the second change transmission case and a second shaft of the first change transmission case is connected with a second driving shaft. An output shaft of the internal combustion engine is connected with a first motor stator through the main clutch. In addition, the first motor is electrically connected to high voltage power cells through a first motor controller and the second motor is also electrically connected to the high voltage power cells through a second motor controller, wherein the high voltage power cells can provide electric energy for the first motor and/or the second motor.