讨论了在广电系统中采用FTTLan技术构建宽带接入网的方法和施工技术 ,阐述了宽带接入网的现状、宽带接入技术体制的比较和选择 ,将基于FTTLan的宽带接入网与HFC网络改造结合起来 ,设计了宽带接入网的物理模型和施工原则 ,最后提出必须提高宽带接入网的网络管理水平 ,采取合适有效的认证方式 ,从而建设新一代的高性能、高管理能力的运营级宽带接入网 The method and construction technology of FTTHan technology for constructing broadband access network are discussed. The status quo of broadband access network and the comparison and selection of broadband access technology system are discussed. The FTTLan-based broadband access network and HFC network In the end, it is proposed that the network management level of broadband access network must be improved and an appropriate and effective authentication method should be adopted to build a new generation of high-performance and high-management operation Level broadband access network