Abstract: This paper thinks over the triune mode of society security and brings forward a referenced idea for the development in urban fringe. The content analysis are on the basis of the site investigation and data, adopting interactive role relation, a special angle of view, to see through the problem. The key of problem is the benefit need and the benefit relationship among roles. The reclassified and explicitly defined roles-playing is needed and favorable to all relative sides. In course of doing this, the government should act as a leading actor rather than an absentee.