The trend of expanding administrative authority was seen in the governments of each country over the response to corona (Covid-19). Japan is no exception. Urgent administrative decisions were often needed to deal with coronavirus infections. It may be necessary for the government to respond flexibly when the legislation is not enacted in time, but this has also led to the expansion of administrative power. In this paper, the change of Prime Minister from Prime Minister Abe to Prime Minister Suga in September 2020, and the expansion of administrative authority and the expansion of Cabinet authority seen in the promotion of the Digital Agency will be disucused.