The application of the information system is a tool to analyze the relationship between the application of the information system in the way of 3D visualization. It can display all the application nodes, the relationship between the applications, the flow of information, the application of basic information, application of monitoring information and the application of alarm information. And it can be used to directly, quickly and accurately locate the fault nodes and the influence range when a problem occurs. At the same time, it also can display the relationship between the internal system structure and the structure of the application nodes in 3D visualization. Analyzer data source is from the relational database, back-end uses J2EE technology, three-dimensional visualization uses Unity3D. The whole analyzer has the characteristics of flexible deployment, good expansibility, easy operation, clear and intuitive data.