Cyberspace is a new phenomenon that emerges in the context of information technology development and globalization.At the same time，it also faces a lot of problems and challenges，which need to integrate the development benefits of all civilizations to solve.From the perspective constructing a community of shared future with respect to cyberspace，this article tries to construct a theory for Global Cyberspace Governance，which is composed of cyberspace human-rights，cyberspace sovereignty and cyberspace governance-right.Based on the idea of multiple-shareholders governance，this article also puts forward theoretical reflections and practical policies which combine baseline-equality theory and cyberspace governance.