Abstract: The article is devoted to the psychosemantic research of interpersonal perception of bilingualism by bilinguals and monolinguals. There are many researches on bilingualism, however, the affect of bilingualism on the semantic structure of interpersonal perception has never been studied. The subject of the research is the structure of subjective perceptions of bilinguals and monolinguals on artificial perception. The object of the research is the subjective perceptions of artificia bilingualism. The aim of the research is to discover modifications of the semantic structure of interpersonal perception of bilinguals depending on the fact of one's knowing or not knowing a foreign language. The research method used by the author is the original partial semantic differential that was created by the author to research and reconstruct the meaning system that is involved into the process of interpersonal perception of bilinguals. The results of reconstructing the semantic space of interpersonal perception of bilinguals in two different groups demonstrate that the size and contents of semantic spaces of bilinguals and monolinguals differ a lot. In the group of monolinguals the semantic space had the following significant features: difficult communication, enthusiasm, eccentricity, and sympathy. In the group of bilinguals the semantic space had three factors: enthusiasm, friendliness, and modesty. The novelty of the research is caused by the fact that the author has used the data multiplexing method to compare two factor structures in two groups. As a result, the researcher has discovered that unlike monolinguals, bilinguals perceive bilinguals are more goal-oriented and open in communication while monolinguals perceive bilinguals as apathetic and reserved.