This work researched the linguostatistical indicators of poetic works of P. Karmansky, in particular the lengths of sentences, words and word forms are comprehensively calculated and analyzed. The following values that characterize the poet’s idiostyle are calculated: the number of values (n); maximum value (max); minimum value (min); scope (R); fashion (Mo); median (Md); average (X ̇); standard deviation (σ); coefficient of variation (V); standard error (Sx ̇); relative error (ε). The main object of study of the writer’s idiostyle is the language of his works of art, the set of linguistic means that decide the artist as an individual among others. The unified basis of all units of idiosyncrasy is the author’s worldview. Therefore, the problem of studying individual style is closely related to the problems of the linguistic picture of the world and the linguistic personality of the writer. P. Karmansky’s poetry is an interesting and little-studied phenomenon in Ukrainian literature. In listening to a number of researchers considered the life of P. Karmansky, separately thematic work, characterized by the peculiarities of those who compose his poetics. Instead, the creative work of P. Karmansky did not become the object of linguistic and statistical analysis, which determines the relevance and novelty of the study. The research corpus systematizes the author's poetry is systematized on the basis of his collections, publications in contemporary periodicals and manuscripts. The material of the study was the texts of Petro Karmansky’s collection «Poeziyi», published in Kyiv by «Ukrayinskyy pysmennyk» in 1992, which is considered one of the most complete collections, containing previously unpublished poems (the total number of poems in this collection - 334). The analysis showed that Karmansky used to use sentences of four words and words of four letters. The list of the nine most common word forms that appeared in Karmansky’s selected poems is «і» – 1714 times, «в» – 1157 times, «не» – 605 разів, «з» – 532, «на» – 507, «що» – 461, «як» – 429, «я» – 326, «а» – 207. It turns out how the poetic handwriting of the artist changed during his life.It turns out how the poetic handwriting of the artist changed during his life.