In this article, the theoretical views about the morpheme analysis of occasionalisms in the processing of Uzbek texts are analyzed. On the example of occasionalisms occured mainly in literary texts, the importance of the base of words and adverbs in the implementation of morpheme analysis is shown. Moreover, derivational and inflectional models of affixes were statistically studied based on experiments, when entering occasionalisms formed from word-forming morphemes into the database and analyzing it with the assistance of a computer. When dividing words formed by word- forming suffixes into morpheme parts, the use of their morphological information or the determination of word bases according to the grammatical relationship with other words in the text is expressed. It is emphasized that the morpheme base of the Uzbek language is not only a linguistic resource, but also a source of word formation for language learners.