With the development of information technology, space-based information system has expanded the cyberspace from ground to natural space. As a result, cyberspace is becoming more and more complex. And the problem of network security is also increasingly serious. Therefore, how to display and analyze the situation of space-based information systems in cyberspace comprehensively and deeply has become an urgent problem to be solved. This research analyzes the current situation of space-based information network and summarizes the characteristics of cyberspace. For space-based information systems and based upon the existing theories and methods of cyberspace visualization, this research explores the mapping relationship between cyberspace and geographic space and proposes the content and technical path of cyberspace visualization from three aspects: information elements, topological relations, and security behaviors. Moreover, it constructs a cyberspace geographic graph. This research may provide technical support for cognizing cyberspace situation and maintaining network security of space-based information systems.

space-based information system  /  cyberspace  /  network security  /  geographic graph