This paper introduces the definition and structure of Internet of
Things. This paper discusses the application status and prospect of optical
communication technology (optical fiber communication and wireless
communication) in the Internet of Things from the perspective of perception
layer and network layer. Fiber optic communication, near field wireless
communication and mobile communication are the basis for the development
of the Internet of Things. The key and difficult point for the future development
of the Internet of Things is to formulate unified and standardized protocols and
technical standards at all levels of the Internet of Things.