Hybrid power transmission system and hybrid power rail engineering vehicle

The embodiment of the utility model provides a hybrid power transmission system and a hybrid power rail engineering vehicle. The hybrid power transmission system comprises a power source, a hybrid power transmission device and a mechanical transmission device. The power source provides power for the hybrid power transmission system; the hybrid power transmission device comprises a motor system and a motor clutch device, wherein the motor system can be used as a generator and a motor, and the motor system is connected with the power source through a motor clutch. The power input end of the mechanical transmission device is connected with the motor system, and the power output end of the mechanical transmission device is connected with wheels or wheel pairs of a locomotive equipped with the hybrid power transmission system and used for transmitting power transmitted by the hybrid power transmission device to the wheels or the wheel pairs to drive the vehicle to move. The rail vehicle equipped with the hybrid po