Abstract: In the face of some problems, such as slow calculation speed, weak immersion and small display scale at the present stage of virtual exhibition platform, for the purpose to improve the design concept, expand the service object, simplify the design process, shorten the design cycle, reduce the design cost, this article proposed the construction of large-scale design virtual display platform based on computer cluster, through the demand analysis, carried out the overall architecture design. The key technologies were parallel visualization technology based on the multi thread and multi protocol and computer cluster technology which were used to render large scale scene and implement the virtual exhibition platform for efficient computation and on demand transmission.