Based on the analysis of traditional video-on-demand system, this paper introduces the design model, function and characteristics of the VOD system based on cluster sever, especially the key techno1oi and method in its realization.

• 摘要在对传统点播视频系统进行比较分析的基础上，给出了一种支持服务器集群的视频点播系统的设计模型、功能与特点，并重点介绍了该系统实现的关键技术和方法。