Objectives : This study is to explain the effects of Yoga therapy for relieving dysmenorrhea on the aspect of Oriental Medicine and to identify the therapeutic Yoga asanas applicable to clinic medicine. Methods : We searched papers using Pubmed, CNKI and 7 Korean medical databases. We used "Yoga" and "Dysmenorrhea" as keyword. Limitations were as follows ; the last 20 years of publications and search range only including RCTs. Papers without inclusion criteria were excluded. We classified all the searched RCTs studies into Yoga exercise prescriptions. Results : A total of 47 studies were found. And 38 were excluded during extract screening. Finally 3 RCTs were selected and analyzed out of 9 papers. Blood sampling and survey questionnaires were used in the outcome measure. They reported that Yoga exercise could be used for dysmenorrhea patients, which has a curative effect. Conclusions : Yoga therapy can be explained as Meridian muscle theory in the concept of Oriental Medicine. Also, it may be a favorable choice for dysmenorrhea patients. Further studies to describe the effects of Yoga therapy will be needed more.