Under the guidance of the new national strategy in 2017，the development of new media in China is facing new requirements and changes. China is to start a new journey for the construction of a modern socialist country. In that case，how to build networks and new media，and how to play the role and function of new media，is of utmost importance. At present，China’s information construction achievements continue to benefit the people，and the state has adopted multiple measeures to strictly control the Internet in parallel with the platform’s independent rectification. The development of the network is further standardized. China has stepped into a new era of intelligent connection. The construction of “Digital China” has entered the fast lane. The new government media has opened up a new phase of resource sharing and service upgrade. The new forms of network broadcast and short video industry are various；media convergence has entered a period of systemic innovation；content payment and knowledge services have revolutionized new content. Building a community of shared future for cyberspace promotes the innovation of global communication order，and new media diplomacy contributes to the promotion of China’s international influence. As new media development enters a new era，the following problems cannot be ignored：the loss of traditional media elites has accelerated，and the security of personal information for new media users is urgently needed to be protected，the “China’s threat theory on science and technology” is inexhaustible，network trend of thought has the risk of deconstruction of mainstream ideology and the global cyberspace security threat has increased.