Abstract: To achieve the goal of“educating through the system”, it's very essential to explore the intrinsic mechanisms of how school system life can promote individual development. These mechanisms involve the strong promoting mechanism and the weak promoting mechanism. The former can be subdivided into the sharing mechanisms psychologically and the regulating mechanisms behaviorally, the latter can be subdivided into the generative mechanisms psychologically and the guiding mechanism behaviorally.

Key words: school system life, individual development, mechanism