The subject of our paper is Qumandy Turks, who live in Southern Siberia region, in the Altai Republic (Gorno-Altaysk) and outside the region, in various aimaqs in Altai Krai and the language of Qumandy Turks who live in the city of Biysk. According to Unesco, Qumandy Turkic language, which is categorized among languages about to become extinct and evaluated as a language about to be almost extinct in the ‘languages under risk’ list, is evaluated within the scope of North Altai dialects in terms of language characteristics and carries common aspects with Shor, Khakas and Chulym Turkic languages. Qumandy texts which have been compiled by Baskakov in 1972 and Güner Dilek (2005) in 1998, comprise the sources of our study. In these texts, which have been compiled at different dates, the issues of the conditions and signs of how Qumandy Turkic entered the stage of ‘languages at risk’ * This paper was originally presented (May, 2012, in Ankara) and published (in Ankara, 2013) in Turkish at the symposium that mentioned-below: The 4th International Turkish Studies Symposium: Turkic Communities whose Languages and Cultures are Endangered. through the observations the researcher compiled from the texts and the observations the researcher has made in the field and it will be handled in phonetical, morphological, syntactic, lexical and similiar terms. As a result, in this study, on the basis of the mentioned texts, the changes arising in the different levels of the Qumandies’ native language are either to be given as examples of new formations or the process of loss triggered by the abandoning of the old due to the new formations.