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In order to show the campus landscape and cultural atmosphere,this paper designs virtual campus roaming system based on Creator and Vega platform. This paper introduces the object oriented thought organization scene data combining with the characteristics of campus buildings,and realized the hierarchical management of virtual scene. In the modeling stage,the system uses different accuracy of texture mapping to generate different precision model,given fast modeling method for supporting LOD. In the navigation,the system can display the attribute information of the virtual object by clicking mouse,and find the shortest path by using the Dijkstra algorithm. By testing on PC,the scene fidelity and view fluency is ideal no matter in rendering efficiency or overall system efficiency.