The Concept of Physis in Wang Bi's Philosophy points to beings, and includes double meanings: one is so-by-oneself, which is very obvious but remains at form and name; the other refers to the dimness of beings originating from non-being together with dark virtue, constant nature, plainness and so on. The latter can be described as so-by-non-self which will accomplish the so-by-oneself. It implies that though possessing form and name, what's more, beings are provided with ontological content. And Wang Bi's revealment of the structure of beings' physis concretizes non-action into tangible political practice such as rites-music and punishment-governance.