The "Global Geography" VR education system is based on 3D modeling technology, collision detection and immersive VR technology, and uses Unity3D game engine and Maya modeling software to create an immersive space and galaxy VR interactive experience environment. Use Maya software to make scene models; Use Unity3D game engine as the main development platform to complete function realization and VR environment construction; Use VRTK plug-in to realize VR interaction function; use OculusRift equipment for commissioning tests. The system enables students to have a comprehensive and true understanding of galaxy knowledge through immersive VR interactive experience, and improves students 'learning enthusiasm and learning efficiency of geography. The system is mainly composed of four modules: video introduction module, celestial system introduction module, solar system eight planets module and planet real scene experience module.