For the purpose of developing korean herbalogy with the plants of Epilobiaceae which grow wild and is planted in Korea, the these and writings on herbalogy, from literature of successive generations, have been thoroghly investigated and the results obtained were as follow: 1. There were totaled 29 species in Korea and among them medicinal plants are 12 species may be added because of the similiar plants. 2. According to the oriental names which can be used for medical purpose, the medicinal plants belonging to the Epilobiaceae family were classified as Herba 10, Radix 3, Semen 1. Thus it was noticed that the Herba were main kind. 3. According to sum of 29 species in Epilobiaceae family, they were classified into Epilobium genera 16, Circaea genera 6, Oneothera genera 3, Fuchisia genera 2, Ludwigia genera 2. Thus it was noticed that Epilobium genera was the main kind, same 55% in total. 4. According to nature and flavour of medicinal plants, they were classified into warmth and heat:3, cold and cool:11, balance 7. Thus it was noticed that cool and cold is the main in nature and flavour medicinal plants. 5. Comparing to whole medicinal plants 12 kinds, toxic drugs include minor toxin were 2 kinds, 7% of the whole. From this result. It was revealed that the plants for medical purpose in Epilobiaceae was 41% kinds of whole, herba and radix were abundunt, toxic plants were so rare that it will be used for clinical treatments more easily. It is considered that clinical experiments and approaches should be continued to use Epilobiaceae plants widely.