2020 is destined to be an extraordinary year in the history of the world. At present, the international situation of prevention and control is still very grim, and the “turning point” of anti epidemic has not yet emerged. Undoubtedly, such a violent impact is bound to have a profound impact on the current international political pattern and world order. < p > < p > the psychological and cognitive basis of the relationship between China and the United States and Europe is undergoing subtle changes. The global spread of the epidemic not only tests the institutional resilience and decision-making ability of various countries, but also highlights the importance of national emergency management and public health governance system construction. Among them, China’s ability to respond to the epidemic is in sharp contrast to the disappointing performance of the United States and Europe, which is almost unprecedented since the industrial revolution. Not only that, as China has largely controlled the spread of the epidemic, but also helped other countries within its ability, which has virtually deepened the vigilance of some countries. They even unconsciously promoted this contrast to the level of social system and values. The psychological mechanism is: when the national or individual self-confidence is obviously insufficient, self-esteem will be stronger than before, and vigilance will become more serious. This subtle change in the basis of cognitive psychology exerts a subtle influence on the international political pattern. The epidemic situation of < / P > < p > as a “catalyst” may change the tone of Sino US strategic game. Since the trade friction in 2018 and even the earlier “Asia Pacific rebalancing strategy”, some foreign scholars have been clamoring for “China and the United States should decouple economically and technologically”, advocating that the United States should strictly control and restrict Sino US exchanges in the fields of telecommunications and high technology. As a catalyst for the epidemic, Sino US relations have obviously become more tense. Meanwhile, novel coronavirus pneumonia has been weakened by the fact that the epidemic situation has weakened, and the international political system under the leadership of the United States has further shrunk. Previously, people, including most people in the United States, generally believed that win-win cooperation between China and the United States is the mainstream direction, while confrontation and competition are secondary forms. However, with the use of “cold war thinking” by the United States to deal with China during the epidemic period, including “throwing the pot” at China for the reasons of poor anti epidemic efforts, unjustifiably accusing who of favoring China, and closing the Chinese Consulate General in Houston, it is becoming a reality that some of the Internet and commercial aspects are decoupled. If this phenomenon is allowed to deteriorate further, it is likely to lead to the domination between China and the United States The tone has changed. As a third-party force that aggravates Sino-U.S. frictions, whether European countries will follow up and “choose a border station”, or remain basically unchanged, or vigorously implement the policy and line of multilateralism, needs further observation. At present, novel coronavirus pneumonia is a risk factor for the competition between China and the United States. It is necessary to consider the risk of marginalization of other major countries in the world by the new crown pneumonia epidemic. These countries are more likely to unite and coordinate their efforts to compete in the US and China, and take the “third way”. European countries, especially France and Germany, will cooperate more closely and focus on organizing other forces between China and the United States to form a third-party power. This possibility is increasing. Whether the circle is close or loose now seems to be in favor of the latter. After all, the frequent incidents of border blockade and mutual interception of medical supplies within the EU indicate the fragility of the alliance to a certain extent. < / P > < p > in the face of the common crisis of all mankind, no country or region can be alone. The international community needs unity and cooperation and coordinated collective action more than ever before. China obvious to people in the process of one’s anti epidemic, one belt, one road, the other is the confidence of China along the line. The epidemic highlights the importance of public health and digital infrastructure. It should be noted that Chinese enterprises are still facing more difficulties in conducting business in developed countries. However, due to the lack of cheap alternatives in developing countries, Chinese enterprises are very welcome. In novel coronavirus pneumonia, we should also strengthen communication, dialogue and coordination with neighboring countries, and promote the construction of a community of human destiny. < / P > < p > the epidemic situation forced the ability of some countries to suffer from a “crisis of trust” from the people. On the one hand, due to the rapid spread of the epidemic, the number of confirmed cases in many countries has increased rapidly; on the other hand, the economic situation is grim, and the number of unemployed people in various countries is also increasing, which leads to a deeper “crisis of trust”. The actions of some countries, such as the “group immunity theory” put forward by the United Kingdom in the early stage and Trump’s “killing the virus by drinking disinfectant”, all of which have made the people lose confidence in the national capacity and leadership. Moreover, setbacks in the fight against the epidemic may cause these countries to fall into the quagmire of self enclosed populism, exclusionism and unilateralism, thus weakening the strength of international cooperation in the fight against the epidemic, and further intensifying the anti globalization trend, that is, increasing restrictions on Trade and technology, and triggering a new round of turbulence. The urgency of epidemic prevention is no less than a war, and the enemy of virus is even more cunning and terrifying than the armed enemy. Every big war is an opportunity to reshape social order. Under the crisis, social change often has the ability to break through the resistance, take root, and finally become the new normal of society. In the future, we still need to be problem-oriented and deeply study the impact mechanism of the epidemic on the global governance system and the pattern of international relations.