Japanese (Japanese language, ほ ん ご に), is a mainly for the Japanese islands and the language used in the nation, is Japan's official language. Japan has a population of more than 120 million. From the linguistics speaking, Japan is almost as a single national, more than 99% of the population speak the same language. This means that Japanese is the world sixth biggest language. However, Japanese in the area beyond Japan was rarely used.

About the origin of the Japanese language have DuoZhong theory. Many scholars think, from the syntax, the Japanese such as Turkish, and close to the altai language such as Mongolian. Japanese and Korean similar on the syntax is widely recognized. There is also evidence that Japanese lexical and vocabulary in by the Malay-south of prehistoric polly the effect of language Asia.

Although Japanese and Chinese language spoken totally different, but the Japanese writing system from Chinese. Chinese writing in five, six century some time was introduced to Japan, Japanese used from the change of Chinese characters hiragana and katakana appropriately the two ShuXieTi speech to the Chinese ShuXieTi added.

In vocabulary, in addition to handed down from ancient and language outside, still have a China into the Chinese characters. Recently to the loan words by countries proportion will increase gradually. For people in performance, Japanese extremely rich change, not only is a difference between oral and written, and ordinary and solemnly, male and female, old and little distinction, and developed honorific system. And in part, to the languages of the eastern Japan and the differences between them. In addition, for people with hearing loss do, Japanese grammar and corresponding rhyme system of Japanese sign language exist.