The Japanese scholars have made much achievements in the field of study of the history of Chinese language, even surpass the Chinese scholars in some fields. These achievements extraordinary merits us attention and use for reference. This thesis discusses the history and present condition of study on the history of Chinese language in Japan, as well as the Sino-Japanese academic exchanges have positive role to the history of Chinese language by five aspects, combine the author' sexperience of teaching for three years in the Chinese speciality of national Fukui university of Japan.