The paper presents the first comprehensive review of vegetation cover of the bog mineral islets – small parts of land situated among the mire massifs of the Polisto-Lovat mire system (Pskov Region). The study aimed to reveal the geobotanical subdivision of forest vegetation described during the inventorying of mineral islets. Fieldwork was carried out from 2017 to 2022. 55 islands and 4 paludified areas on the sites of previously existing islands were described. Pine bogs were found in three cases on the place of former islets. Data set includes 67 vegetation relevés representing pine forests, spruce forests, birch and aspen forests, oak forests, black alder stands, and meadows. The diverse composition of phytocоenoses required soil research to understand the patterns of their formation. Data obtained proved the close relation of vegetation cover and quaternary deposits, soils, ecological condition of ecotopes, and the history of nature management.