The main purpose of the paper is to illuminate the linguistic and stylistic features of onomastic units used in Uzbek literary texts. In particular, the emergence of these units in the status of poetonyms, their occurrence in the text as onomastic metaphors, allusive nouns, "speaking" nouns, intertextuality are studied, the Alpomish, Boychibor, Asqartogʻ, Humo which are used in Uzbek folklore, and also the role of onomastic units in the formation of the literary of simulation and hyperbola is shown. Also, the poetonyms used in poetic works give rise to various works of art, while the poetonyms in prose works mainly serve to emphasize the idea of the work of literary or express the author's subjective attitude, implicitly refer to the external-physical or internal-spiritual image of the character is proven.