With the gradual stabilization of the domestic epidemic situation, the newly confirmed cases in various provinces and cities began to be cleared, and many China people and foreigners hoped to go to China to avoid the epidemic situation. In this case, it is an important task to prevent and control imported cases from abroad, so why not close the country to imported cases? Let's take a look. Some experts said that in the face of the global epidemic, China did not restrict the entry of foreigners for various reasons. Most of these people who come back from abroad are overseas Chinese and international students, and they need the help of their motherland. In the context of globalization, China is an important part of it, and it is unlikely to choose to close the border. At present, all parts of the country are strictly preventing the epidemic from being exported abroad. For example, in Beijing, all foreigners who come to Beijing should be transferred to the centralized observation point for 14 days of isolated observation. China has the ability to guard against the risk of imported foreign epidemic. When referring to the imported epidemic, Academician Zhong Nanshan said that it is necessary to strengthen the monitoring of overseas Chinese. According to the relevant guidelines, it is of great help to isolate people coming to China and do nucleic acid testing if possible.