In the 21st century，China-Japan relations are entering a new stage：frequent exchange of visits between the heads of Japan and China，and the voices for understanding and cooperation becoming the mainstream in both countries.New progresses have been made in many fields such as political coordination，economic and civil exchanges，and environmental protections.Despite some uncertainties，it will be a historical trend to maintain a strategic reciprocal relationship between the two countries，which will certainly have a far-reaching impact on both regional and global stability and development.