Abstract: Computer technology,which has experienced 20 years rapid development under desktop-computing paradigm,is gestating one kind of innovatory computing paradigm:ubiquitous computing.Because of the requirement of mobility and location information,ubiquitous computing natively grafts on geographic information.Therefore,studying geographic information in a ubiquitous computing environment is necessary.The concepts and significances of ubiquitous space and ubiquitous geographic information were presented,and the framework of ubiquitous geographic information was established.Finally,we carried out detailed analysis on the components of the framework.