Abstract: The Virtual Reality is a composite technique. It can create the lifelike feeling such as visual, hearing and smell sense, make people participate the virtual world, and give people the sense of being personally on the scene. The Virtual Reality System is composed of the hardware such as the graphic workstation, the display equipment and the sensor instruments; it is composite with 3D modeling, virtual scene driving and sensor controlling software, etc. 3D modeling, interacting, sensing and computing technique supports the Virtual Realty. The Virtual Geographical Environment (VGE) comes out of the using of the Virtual Reality in Geography. VGE makes it realized that the geographer could design and modify the geographical correlation, analytic and engineer model according to the personal technology, supposition and plan, and observe the result through interacting with it. With the developing of application of the Virtual Reality in Geography, the science of Geography will be explored more deeply. In geographical education, because the Virtual Reality expresses the technology and concept in lifelike feeling, the educated person will be more interested in it, and it may lead to better results. In theory study, the Virtual Reality may realize the virtually reappearing of the most part of geographical studying activity, which can help the geographer immerse in certain 3D scene wholly, so that they can give full play to their geographical ability of thinking and imagination. The virtual geographical experiments can be done by the Virtual Reality, which makes geographical simulation repeatable. Furthermore, the Virtual Reality is important in the practice of urban planing, tourism, and disaster prevention, and so on.