The Internet has become an important distribution center of news information and the main battleground of public opinion struggle，cyberspace has become a battleground of public opinion，and the competition for ideology and dominant discourse power is becoming more and more intense. The ecology of network public opinion has become a major issue related to the ideological security of the country. In an important speech delivered at the National Conference on Propaganda and Thought，Comrade Xi Jinping pointed out that it is necessary to scientifically understand the rules of network communication，improve the level of network utilization and management and make the Internet the biggest variable into the biggest increment of career development. We should deeply grasp the development trend of the media，strengthen the content construction，and also strengthen the ability to lead the network public opinion，and cultivate a good network public opinion ecology.