In 2019, China's 5G technology and network development will enter the trial commercial phase. As a national development strategy, 5G will combine the application and construction of new-generation information technologies such as the Internet of Things, Industrial Internet, cloud computing, big data, artificial intelligence, and blockchain. Digital China will carry out supply-side reforms of China's traditional industries and create a smart economic society, thereby driving a new round of economic growth in China. This development trend will profoundly affect and change the development pattern of the optical communication industry, and accelerate the development of the optical communication industry towards the intelligent optical communication industry. 5G and the Internet of Things, the new generation of information and communication technology put forward new requirements on optical transmission networks, optical access network technologies and standards, network construction and deployment, etc. At the same time, new optical components and modules are required to adapt to new technologies and Application needs. Based on the above background analysis, industry experts in the optical communications field will be invited to focus on "new technologies, new applications and new formats of optical networks", "integrated development of optical broadband access and smart industries", "optoelectronic devices and optoelectronic integration technologies" and "down One generation of data center optical interconnect technology "," 5G + industry + next-generation information technology "and other topics, held the" 5G Era Optical Communication Industry Transformation and Application Innovation Development Forum "in 2019.