Google AdSense supports publishers in several different languages. Applications for participation in the program can be for sites with content primarily in:
* At this time, AdSense only supports ad serving in this particular language. The AdSense product interface and Help Center aren’t currently available in this dialect.
You can select your site’s primary language over the application process. If you’re accredited, AdSense will serve relevant ads in your pages in the appropriate dialect, even if your site contains multiple supported languages.
Please also don’t forget that placing the AdSense code on pages with content primarily in an unsupported language is not permitted through the AdSense program policies.