Cyberspace is related to the fate of mankind, and technological revolution promotes social change. The just concluded 2022 China Internet civilization conference issued the Tianjin Declaration on jointly building internet civilization, which proposed to "form a new pattern of Internet civilization with Chinese characteristics, Chinese style and Chinese style", and issued a new voice of China towards a new era of digital civilization. From the perspective of social development history, human beings have experienced agricultural revolution, industrial revolution and are experiencing information revolution. The rapid rise of productivity brought by each industrial and technological revolution has profoundly changed production relations, reshaped the governance structure of human society, and further affected the fate of different countries and nations, and the rise and fall of different civilizations. Information technology has changed the pattern of human production, expanded the space of human life, and enriched the connotation of human civilization. Language, writing and its communication have achieved a new leap with the help of information technology. Ideas, expressions and dialogues have also produced new paradigms in the digital age. In the information age, the expression of emotion, the transmission of information, the popularization of knowledge, the communication of ideas and the exchange of civilizations have taken on a new look. The dialogue between technology and humanity, space and humanity, culture and civilization is also generating chemical reactions. "If you can't pass the Internet, you can't pass the long-term governance.". Whether we can seize the historical opportunity of the information revolution, innovate ideas, stimulate wisdom, optimize governance, and build civilization is the key to whether a country or a nation can achieve major leaps and prosperity. Everything is a medium, and the platform spreads globally. In the era of Internet new media, information content has realized a great change from professional production to user production or mixed production. The profound changes in the production and dissemination of network information content have brought new social problems and governance challenges while facilitating exchanges and innovating business formats. Audio and video technology almost eliminates the knowledge threshold of information acquisition, and illiterate people can also enjoy rich information content; The popularity of intelligent terminals has greatly reduced the economic cost of information acquisition, and people in remote areas can also be online at any time. However, traditional governance systems and rules such as content classification have also failed, and all people, especially minors, are more likely to be exposed to bad information such as violence, pornography and terror. How to turn "the largest variable of the Internet into the largest increment of career development" has become an urgent issue in the new era. The content of information is related to national security and the international order. On the one hand, by using artificial intelligence recommendation algorithms, big data and other new technologies and new applications, massive information dissemination provides new possibilities for public opinion manipulation and social mobilization, and brings new risks to the network ecology, social stability and national security; On the other hand, the international environment is becoming increasingly complex, the geopolitical game is intensifying, and cyber hegemonism poses a new threat to world peace and development. The ecological governance ability of network information content has become an important dimension of the national capacity matrix. It is necessary to promote the independent innovation of key core technologies to achieve breakthroughs, explore the application of artificial intelligence in news collection, production, distribution, reception and feedback, use mainstream value orientation to control "algorithms", and comprehensively improve public opinion