Diplomacy is an activity that has been carried out by countries in the world since hundreds of years ago. The practice of diplomacy implemented by countries today has begun to shift from hard power to soft power. Diplomatic activities using hard power are considered irrelevant because they seem more coercive and can trigger conflict and can create a bad impression when diplomacy using soft power is more widely applied. Cultural diplomacy is also an option in the application of the concept of soft power. Of the many countries in the world, Japan is one of the countries that implement these efforts. Japan is trying to make a good impression on countries in the world by utilizing cultural diplomacy. With the influence of globalization, the spread of modern culture can occur easily in various regions. This strategy can attract public interest in Japan without coercion. This study discusses the cultural diplomacy of the Japanese government through the use of Doraemon anime in the Cool Japan strategy. The purpose of this study is to explore how the impact of Doraemon anime can improve the image of Japan and increase the good impression on Japan. By using a qualitative method, it was found that the presence of anime, especially Doraemon, can be a diplomatic tool that Japan can use to achieve its national interests and make Japan being well-accepted in the international region.