This work studies situational visualization techniques. They are popular 2D and 3D display technologies, transformation method of WGS84 coordinates and Mercator projection coordinates, message middleware, AAR archive system, and database API gateway. 2D and 3D linked situation visualization system is designed and achieved. The system uses message middleware to synchronize process information of simulation, uses the database API gateway to manage the 2D and 3D models of entities, uses the AAR archive system to record and play back the simulation process. The test demonstrates that the situation visualization system can meet the simulation mission's requirements, and the situations displayed by the 2D and 3D display parts are linked.