Abstract: Questionnaires, interviews and observations were used to investigate bilingual Tibetan adults, attitude toward their native language and Chinese, their attitude toward the selection of Tibetan or Chinese in different communicative contexts, and their attitude toward the transformation of one language code into another The result of the investigation showed that most of the bilingual people have a deep feeling for their native language, and a strong inclination to keep their own language. The factor of feeling plays an important part in the attitude of the bilingual people toward their native language, while in the attitude toward Chinese language their is something more rational or cognitive than emotional. They show a positive attitude toward learing Chinese in order to master it. but when it comes to the viewpoint of replacing Tibetan with Chinese, their attitude turns to be negative, Bilingual people mainly use their own language in the family and among their own people. lf one Tibetan speaks in Tibetan,while the other responds in Chinese or in Tibetan mingled with Chinese, it is not welcome.

Key words: Tibetan, bilingual, attitude