The study was carried out in the mainstream of linguistic phenomena in philology. The article is devoted to the study of the speech of the tatars, enduring in the cities of Urumqi and Kuldja of the People´s Republic of China. Studied the general characteristic of the tatar speech of China diaspora and considered the features of the use of the tatar language in the region Investigated some of the lexical phenomenon, an old vocabulary, drawing, and synonyms in the language of the China tatars. Discusses some of the phonetic phenomena in the field of substitution of vowels and changes consonants in a speech, which are directly connected with lexical norms of the tatar literary language and its dialects. The same examples as from the oral speech of the inhabitants of Kuldja and Urumqi, as well as from folklore material of the Tatar Diaspora in China. Identified preconditions of use of the tatar language, similarities and peculiarities of use of native Turkic tokens and borrowed words in the speech of the tatars, living in the PRC.