This article is an attempt to explain the Platonic conception of the common good as a theory much more equivalent to the common good (as such), than modern theories that they put a man on the pedestal, instead of the community. By reference to the content of Laws and State will be presented that Plato saw his idea of a state-building manner. This is a very accurate interpretation of concern for the common good. The text was also indicated the role of the religious elements in the text of Plato’s concept.