A storage energy generation method utilizing natural energy and a generation system thereof generates electricity through natural energy such as wind power or solar energy and then compresses air, or directly compresses air, then generates electricity to an electric grid through the compressed air which is deemed as a power resource. An electric station utilizing integrated energy generates electricity to drive an air compression device, further then produces compressed air as an energy storage medium and stores compressed air in an air storage device, and then regards the compressed air as a main or auxiliary driving energy to other electric stations, such that a function of stabilizing and adjusting peak load can be realized.