The present invention discloses the Theory and Method of Unified Internet Integration (UII) which is characterized in followings: the foundation theory of internet map/platform iconology, a series of conceptual definitions, specifications, standards and methods including a complete theoretical system and methodology invented to integrate all the Internet and other local area networks such as GIS, IoT, Block Chain etc into a whole. Especially, the present invention proposed a new concept of Positioning Oriented Architecture (POA) first time in the world and in computer science, and proposed a data structure of POA to organize all different types of icon positioning resources with other IP Address resources and service resources in a uniformed data format to form an icon positioning object to be transferred and used in all network platforms. This is impossible by all current traditional internet and network's theories and technologies.