The article observes the quantitative and qualitative structure of the document flow of scientific periodicals in Documentary Science on materials of publications in the professional scientific journal «Library Science. Documentary Science. Information Science» for the period of 2017–2019, using the bibliometric analysis to demonstrate the possibilities of this method as a way of studying the dynamic development of certain documentary flows. Considering the large amount of information, that is transmitted and consumed, to organize it, it is necessary to study certain document flows in dynamics. It is believed that the most appropriate method for such research is the method of bibliometric analysis, which allows, based on the analysis of quantitative indicators of document flows of a particular industry, to determine the inherent patterns and to modulate it. The main subject of study in bibliometric research is usually various publications of certain documentary flows, which are often grouped according to different characteristics, for example, to authors, journals, thematic columns, countries, etc. The author studies the total quantitative component of publications in Documentary Science and a part of each segment in the total number of publications; language structure of the document flow; one of the criteria for analyzing the document flow of scientific periodicals in Documentary Science is a part of individual publications by years and coauthored. In addition, the parameter of the bibliometric analysis is the analysis of the documentary flow of scientific periodicals in Documentary Science according to the author’s feature. Ukrainian-language publications predominate in the documentary flow of scientific periodicals on documentary studies. Regarding the analysis of the documentary flow of scientific periodicals on document science on the basis of authorship, in the three analyzed years we find about 30 authors who have been published in the journal, six of which have more than one publication. Using bibliometric analysis, we investigated the quantitative and qualitative structure of the document flow of scientific periodicals in document science in a professional scientific journal and identified features of the quantitative dynamics of publications for the period, linguistic and authorial components, thus demonstrating the possibilities of this method as a way to study the dynamic development of certain document flows. one of the effective means of information management of scientific activity.