介绍了物联网的定义及结构; 从感知层和网络层角度, 探讨了光通信技术（光纤通信和无线通信）在物联网中的应用现状和前景。光纤通信、近距离无线通信、移动通信是物联网开发的基础, 制定物联网各个层面上统一的、标准化协议和技术标准是物联网未来发展必须解决的关键和难点。

The definition and structure of Internet of Things are introduced. The application and prospection of optical communication technique(optical fiber and wireless communications) in internet of things are discussed from perceiving and network direction. The optical fiber communication, near field wireless communication and mobile communication are a basis for development of Internet of Thing. Uniform and standardized treaty and technical standard must be estallished to solve critical and difficult problems in the future development.