Abstract: After the largescale outbreak of the epidemic in China, Japan and some Western countries have dealt with them very differently, showing great care and sympathy for China, and vigorously supporting Chinas antiepidemic work. During the epidemic in the first half of 2020, conflicts between China and the United States intensified, and the Abe administration kept its distance from the United States in many aspects. With regard to the understanding and judgment of China, the Abe administration also has similarities or consistency with the judgment of the US government. The Abe governments hopes of revitalizing Japans economy rested on hosting the Olympics to boost the economy. Therefore, the Abe government took the initiative to protect the Olympics in the early stage, concealing the severity of the epidemic as much as possible. The largescale infection of the Diamond Princess passengers and crew is related to the questionable disposal policy of the Japanese government. The tragedy of the Diamond Princess passengers and crew infection has become a piece of history, but the lessons left are profound. During the COVID19 pandemic, the Abe administration attached great importance to the development of diplomacy with the United States and frequently launched JapanUS telephone diplomacy. At the same time, it also attaches importance to diplomacy with EU countries, South Korea and Russia. Under the epidemic, Japan has given full play to its diplomatic knowhow for spending small money and doing big things, and implementing specific drug assistance. The influence of Japanese diplomacy on the cooperation between the United States and the region is increasing, and it has also greatly enhanced and improved Japans international image.

Key words: epidemic diplomacy, Japanese diplomacy, Favipiravir, Tokyo Olympics, Diamond Princess, foreign policy