In 2019，China’s governance of public opinion ecologywas mainly manifested as a “patch” of the system. Specific practices include：special regulation of emerging information content，systematic governance of information content ecology，leading new information technology in advance，timely restraining new illegal activities，and new supplyingnew legal basis for governance，etc. Compared with 2018，the carriers ofmajor public opinion show a strong continuity. The field of production safety accidents，education management，and personal extreme events is still grim. Public opinion in the field of medical management is relatively prominent in 2019. The new features of the public opinion developmentinclude that：thetrend of mobilization of public opinion through labeling was enhanced，formalist governance bred public opinion risks，resorting to public opinion to solve interests issues was outstanding，and the deterioration of public opinion environment has solidified views.