Vietnam and Japan are two countries with good diplomatic relations over the years. Vietnam and Japan have always supported each other in many fields, especially during the covid 19 pandemic that is affecting many countries around the world.

To be able to overcome the pandemic, vaccination against covid 19 is a very important measure. However, Vietnam is a poor country, so it is very difficult to access the covid 19 vaccine. That is why the support of the covid 19 vaccine from international (Covax) and from developed countries is very important, including the support for the covid 19 vaccine from Japan. With the support of the covid 19 vaccine from Japan, Vietnam has more opportunities to access the covid 19 vaccine and is therefore conducting vaccination in the country. Japan's COVID-19 vaccine aid policy to Vietnam is a manifestation of the friendship between the two countries, and it also reflects problems in international relations in Asia.

This article studies Japan's COVID-19 vaccine aid policy to Vietnam, thereby analyzing the diplomatic factors between Vietnam and Japan in the Asian geopolitical context.