The review of the literature had been done to investigate the mechanism of the herbal medicines contained in traditional Korean medical books. We had thought the results could provide the theoretical basis of adding herbal medicies to functional drink. This study is a document research in cluding a historical review of traditional beverages from after the period of the Joseon Dynasty, analysis of the characteristics of tradition the herbal medicine of the Joseon entered the new stage at the era of King Sejong. In the reign of Sejong, there had been a noticeable increase in kinds of herbs. Besides understanding the quality of herbs by provinces, the Joseon government also had pushed ahead with increase policy of herbs. The more the standard of living and incomes have increased, the more the concern of our health has been raised. This social phenomenon has affected on the food& beverage industry. The food& beverage industry of Korea has been already reorganized like the ones in developed countries in the early 21st century. Consumers are particular choosing their beverages; they concern their health, convenience, and taste more than ever. We had selected several herbal medicines contained in functional drink, and investigated the mechanism in field of oriental medicine and pharmacology.