对IPTV体系结构的发展情况进行了简单对比介绍，特别对基于 IMS的IPTV体系结构各模块之间建立多媒体会话的具体过程进行了分析；对 IPTV 系统应用有重要影响的一些流媒体技术的应用发展情况进行了讨论；最后对IPTV相关技术领域的未来发展方向进行了展望。 -Development of IPTV architecture introduces a simple comparison carried out, especially for the IMS-based IPTV architecture multimedia session is established between the various modules of the specific process is analyzed　applications for IPTV systems have important implications for a number of streaming media technology development situation was discussed　Finally IPTV related technologies for the future development directions are suggested.