On the basis of the important consensus reached between China and Japan on promoting China-Japan relations in line with the requirements of the new era，the China-Japan relations in the beginning of 2020 continually maintained the momentum of improvement with close political interaction between the two countries. In the face of the COVID-19 outbreak，China and Japan worked hand in hand helped each other. In the context of intensified competition between China and the US and the normalisation of the COVID-19，Japan’s policy towards China began to adjust，causing a new downturn in China-Japan relations. Since the new cabinet of Yoshihide Suga took office，new developments have taken place in China-Japan relations，which still face many challenges. In the new era，the sound development of China-Japan relations in the future requires the two sides to enhance mutual trust，strengthen dialogue and cooperation，actively manage differences and jointly promote the building of China-Japan relations that meets the requirements of the new era.