During the procedure of the Region-informatization, various kinds of challenges need to be faced. As the main roles in the construction process, Governments, Universities，enterprises build their own information systems which cannot be interoperable due to lack of interconnection standard. So these systems ‘effective data-sharing mechanism is a key issue.. In this paper, from the top design of informatization eco-system，we are going to discuss the roles which these participant play and the mechanism which these participants’ system to interconnect, so that we can improve the development of Region-informatization. We take the Authentication System built in Shanghai Education as example and show the process, design, implementation and the current situation in detail.