The purpose of this study is analyzed of exploratory research potential as anti-obesity agents of Euiiin-tang. Four Korean databases and 2 Korean Journals (Riss4U, KISS, OASIS, DBPIA, and Journal of Korean Rehabilitation Medicine, Journal of Korean Medicine of Obesity Research)were searched using search word ‘individual herbs’ and ‘obesity’, ‘weight loss’, ‘fat’, ‘hypertension’,‘hyperlipidemia’, ‘diabetes’. Clinical and Experimental Research published in the journal were analyzed, review research, studies of pharmacopunctures and studies of mixed herbalmedicine were excluded. We collected 23 studies. Seven studies of Coicis Semen, 10 stdies of Ephedra Herba, 2 study of Angelica gigas Nakai, 3 studies Atractylodis Rhizoma Alba, 1 studiesof Glycyrrhiza inflata Batal. Most studies were experiment researches which were composed ofin vivo or in vitro, and clinical trial was 5 studies of Ephedra Herba. Main constituent herb, CoicisSemen, Ephedra Herba were thought to represent an anti-obesity effect. Through the result, we can assume to be likely effect of Euiiin-tang as obesity medicine.