Hybrid power driving system and method of loading machine and loading machine

The invention relates to a hybrid power driving system and method of a loader and the loader, the hybrid power driving system comprises an engine, an ISG motor, a steering pump, a battery pack, a walking motor, a working hydraulic motor and a complete machine controller, the engine, the ISG motor and the steering pump are sequentially in transmission connection, and the ISG motor, the walking motor and the working hydraulic motor are respectively connected with the battery pack through the complete machine controller. The engine and the steering pump are respectively connected with the whole machine controller, and the walking motor and the working hydraulic motor are further respectively connected with the ISG motor. The complete machine controller judges whether the power required by the walking system, the working hydraulic system and the steering system can be met or not according to the obtained output power requirements of the walking system, the working hydraulic system and the steering system and the