Some stereotypes of Traditional Chinese Medicine（TCM）have been deeply ingrained in the minds of people. For example，TCM is regarded as only good at treating chronic diseases but cannot cure emergencies. However，in 2020，a Public Health Emergency of Concern has changed the perception of some people. In order to inspire the inheritance，innovation and development of the follow-up TCM culture，this paper analyzes and summarizes the changes of reputation on TCM by observing the focus of public opinion，the experiences of culture spread of TCM. All the sources of the paper are based on big data provided by Center for Public Opinion & Big Data Analysis and network hotspots in the field of TCM happened in the first half of 2020.