Subject of research: the content of images of linguistic consciousness of Dolgan Khatanga district of Krasnoyarsk Krai and Anabar district of Yakutia. Objective: to identify the features of the linguistic consciousness of modern Dolgans of two adjacent regions of the Russian Federation. Tasks: 1) to consider the extralinguistic situation in the places of compact residence of Dolgans separately and in the whole region; 2) to consider the linguistic situation in the region; 3) to consider the content of the concept of "native language". Methods: 1) a directed associative experiment was conducted among the SS population. Popigai, Syndassko Khatansky district of Krasnoyarsk Krai and ss. Yuryung Khaya, Saskylakh Anabar district of Yakutia. 2) sociolinguistic research of places of compact residence of the Dolgans of Russia (questionnaire survey, interview, observation, indirect observation (study of documentation). The novelty of the research: the Dolgan language consciousness has not yet been the subject of special research and the concept of "native language" in the Dolgan concept sphere has not been considered before. The results obtained are also interesting from the point of view of sociolinguistics, since the Khatango-Anabar region is a multilingual and multicultural region, respectively, bilingualism and multilingualism are actively developing. It was important for us to find out what a modern native speaker of the Dolgan language puts into the concept of "native language". The subjects were asked to answer the question: "What is a native language?". Basically, the content is built around the meaning of the first word of the stimulus "native", so the figurative component prevails.