The vascular plants of Island Dolsando, located in Yeosu-si, Jeollanam-do were surveyed 15 times from June 2017 to March 2018. Based on the collected specimens, there were 570 taxa; 113 families, 338 genera, 517 species, 1 subspecies, 49 varieties and 3 formas respectively. 18 taxa of Korean endemic species such as Asarum maculatum Nakai were found. There were total 90 taxa of floristic regional indicator plants specially designated by the Ministry of Environment (Level V to I), 4 taxa of rare plants and 8 taxa of endangered plants including Ligularia taquetii (H. Lev. & Vaniot) Nakai.