The purpose of the article is to characterize the documentary stream (DS) of front-line diaries publications of Siberians – participants in the Great Patriotic War (1941–1945). The article shows the place of diaries in source studies and the importance of diary entries for the study of anthropological content and “psychology of war”. It grounds the reasons for the paucity of front-line diaries in comparison with other types of egodocuments (memoirs, letters). For the first time, the documentary stream, consisting of 40 publications of diaries (and about diaries) of Siberians, was identified and completely studied: bibliometric indicators and content characteristics were presented; sites containing full texts of diaries (or their fragments) were identified and their significance was assessed; diaries storage locations were determined. The studied DS provided information about the diaries of 28 Siberians – the ordinary war participants who, for the most part, had civilian professions in the peacetime. An assessment was given to the site “Prozhito”, realizing the project to collect full texts; the need to preserve full texts of diaries was grounded: to identify diaries stored in personal or family archives and transfer them (or copies of them) to state museums and archives; the importance of studying ego-documents about the Great Patriotic War for the goals of education and patriotic training was emphasized.