Abstract
In this paper, the spirit of human was discovered to be a kind of system to process information which is obedient to the life’s oriented. It emanates from body but surpasses body, they can work together harmoniously, and grow up jointly. Just like the hardware and the software of the computer, our physical body corresponds to the hardware, our spirit corresponds to the software. This software system is far from nothing, it has specific structure system and runningmechanism, it exists in the form of information, and its function is obvious.