Objectives: The purpose of this study is to report the effect of Traditional Korean Medicine (TKM) on hyperprolactinemia Methods: The patient in this case was a 26-year-old female. The patient was diagnosed as hyperprolactinemia with oligomenorrhea a month ago. We treated by Ickibohyoultang-gami and evaluated treatment effect by serum prolactin and basal body temperature. Results: After treatment, the Hyperprolactinemia value reduced and returned normal approach. And disorder of menstruation and basal body temperature became stable. Conclusions: TKM treatment is effective in patients with Hyperprolactinemia and disorder of menstruation.