本文概述了当前波分复用（ＷＤＭ）光环形网络结构的物理结构和逻辑结构，并对这些网络结构进行简要的分析，同时对实现ＷＤＭ光环网络结构中的关键问题进行了简要的探讨．最后对我国发展光环形网络给予一些中肯的建议 This paper summarizes the physical and logical structures of the current WDM optical ring network structure and gives a brief analysis of these network structures and briefly discusses the key issues in the realization of the WDM ring network structure. At last, we give some pertinent recommendations for the development of the optical ring network in our country