Research On Social Information Environment Construction Of Mainstream Media Micro-blog Platform

American scholar Lippmann put forward the theory of "mimicry environment" in Public Opinion,stating that media’s reporting of "objective reality" is not a "mirror-like" reproduction,but through a series of selection and processing,the appearance of news information is formed.Media’s selection,processing and reporting of the real and objective reality has become a part of the information environment on which we live.In the new media era of information explosion and social media,the information environment has become more and more complex and changeable.The information environment plays an increasingly important strategic position in the process of national operation,social development and human socialization,and the media has an increasingly high participation in the construction of the information environment.For the masses,the information environment constructed by media plays an important reference role in their own behavior decision-making.The public is in a dynamic balance between the natural environment,which changes slowly in the course of natural evolution,and the information environment,which changes artificially.Human production activities not only change the natural environment,but also shape the information environment.For developing countries,the mainstream media is the national publicity and public opinion direction,which is of great significance to the benign construction of information environment.In this paper,the official Xinhua News Agency,People’s Daily news,CCTV news,peng worship four mainstream media as the research object,by COVID-19 outbreak reported as an example,the analysis in the outbreak era,the mainstream media how to set up the news on the micro-blogging platform framework,and how the social roles and functions,how to construct the information environment and the information environment of how the influence of the masses.The research finds that the mainstream media has significant agenda-setting function;The focus of the COVID-19 issue has been different at different times;The focus of domestic and foreign epidemic coverage is different;In the construction of information environment is faced with some difficulties.The text sorting and quantitative analysis can help to present the problem more intuitively and better show the strategy of mainstream media to construct information environment on weibo platform.The analysis of the four micro-blog accounts of Xinhua News Agency,People’s Daily,CCTV News and peng worship aims to find out the framework of media’s construction of information environment and explore its reasons,as well as to analyze the strategy of constructing a more benign and harmonious information environment.In addition,the analysis of the news frame in a specific time period is helpful for the public to understand media guide and improve mass media literacy.