The paper discusses the impact of mass media on the development of a preschooler language identity. The authors shed light on the impact of such media as Internet and TV that largely affect the formation of a child's conceptual picture of the world, expressed in children's discourse. For the analysis, speech products that belong to the children aged 2-3 to 6-7 were selected from the site www.det.org.ru, available in the form of parents' diary entries transmitting children's direct Internet-and TV-related speech. Relevance and scientific novelty of the paper is due to the availability of separate works, on the other hand, the lack of a comprehensive study. The paper aims to identify the main media impacts that interact with a child language identity; define language levels at which this influence is expressed most clearly. The main research methods involve observation, contextual analysis, statistical method of data processing and descriptive-comparative method. The paper presents and discusses the examples of children's speech that reflect the interaction with the media at the phonetic, lexical and syntactic levels. It analyzes the means utilized to reveal the influence on the development of speech, thinking and attention of a child. The object of the research is the impact of media communication on child language identity. The subject of the research is language means reflecting the process of interaction between child language identity and mass media. The conclusion is made as to whether it is necessary to regulate the interaction of children with the media.