The COVID-19 brought about unprecedented and profound impact to the European society in 2020. It has not only changed people’s order of life and work，greatly deteriorated their livelihood and unemployment problem，but also boosted the rise of remote working models in various countries. The specific performance of the impact of COVID-19 varies significantly across European countries. Under the COVID-19 situation，health and economy issues have become the focus of public opinion，and “uncertainty” is the most common public cognitive state. Facing the COVID-19 vaccine that was approved for use at the end of 2020，the public showed a very cautious attitude. The public evaluation of the EU’s anti-COVID-19 practices has generally undergone a process from negative to positive，and their sense of identification with the EU has strengthened，although their satisfaction with the Member States’ anti-COVID-19 measures is low，and is getting increasingly lower. To give the EU more competence to deal with public crises like the COVID-19 and formulate a more united health strategy have become important public expectation for the future EU construction.