Nowadays, global warming involves in many aspects of our daily life and plays a crucial part in global economy, science-technology development, and the environment. Many countries care about the issue of carbon neutrality, which tends to cut down emissions. This paper will focus on Japan’s participation in carbon neutrality in different fields. Its target is to seek some effective approaches to carbon neutrality goal. The research analyzed 15 articles screened from Google scholar. The conclusion is that Japan has taken plenty of measures in manufacturing, new energy, and many other fields to promote carbon neutrality.