Objectives: By analyzing and comparing indications, components and their doses of herb medicines, which were recorded in insomnia chapters of medical books, we examined historical changes and made clear documentary ground of medications. Methods: 1. 10 books which were noted in insomnia part of 『The Eastern Medical Textbook of neuropsychiatry』 and 13 books were mentioned in same part of 『Uibujeonrok』 were selected as reference. 2. We searched article database such as KISS, riss4U and journals issued by the Korean society of oriental neuropsychiatry. Finally, 39 books which were noted in 3 literature reviews, were chose as reference. 3. In reference books, we collected the herb medicines in chapters related to insomnia. 4. In case of no section associated with insomnia in books, we found prescriptions related to insomnia in whole chapters. 5. If the chief virtue of medication was not primarily for insomnia, we excluded applied or added herb medicines. 6. We classified prescriptions into small groups which had same name, and then rearranged them in chronological order. Results and Conclusions: 1. Banha-tang( banxiatang) of 『Hwangjenaegyeong·Youngchu』 was the first-recorded prescription used for insomnia. 2. The chapter of insomnia appeared in 『Chunkeumyobang』 at first. 3. Ondam-tang(Wendantang) was most cited prescription in medical books. It was recorded totally 19 books from 『Chunkeumyobang』 to 『Hyeoljeungron』. 4. We suspects indications, components, dosage of medication of insomnia in Donguibogam were revised according to author`s clinical experience and circumstances.