本文探讨了基于ATM和Internet传输视频点播业务系统的基本原理和实验实现。该系统由业务代理器和交互工作单元组成 ,业务代理器控制系统内的资源分配及业务指南 ,交互工作单元在代理器的控制下实现各种功能转换 ,包括 :数据流传输协议转换、比特率控制、业务网关转换、业务量监测 This article explores the basic principle and experimental realization of video on demand service system based on ATM and Internet. The system consists of business agent and interactive work unit. The business agent controls the resource allocation and business guide in the system. The interactive work unit realizes various functions under the control of the agent, including: data stream transfer protocol conversion, bit rate Control, business gateway conversion, traffic monitoring