With the improvement of China-Japan relations, China-Japan-South Korea leaders' meeting is set to take place. The Japanese government is in the process of final adjustment on the 9th China-Japan-South Korea Summit held in Tokyo on May 9. The Japanese side hopes to use this summit to promote the visit of Shinzo Abe to China this year, and thus to promote President Xi Jinping's visit to Japan and the exchange of visits between high-level heads of China and Japan. All these indicate that there is a window period for improving relations between China and Japan, which is of great significance for China in promoting the transformation of East Asian geopolitical and economic situations.