The origin of Keijo Imperial University, Medical School, Psychiatry course, and presentation at the Annual Meetings of the Japanese Society of Psychiatry and Neurology and The Japanese Society of Psychiatry and Neurology were investigated from its establishment to 1945. Keijo was the name used for the capital city of Korea, Seoul, when Korea was under Japanese rule. We believe the Keijo Imperial University evolved out of the Governor-General of Korea Hospital and Keijo Medical Professional School. The first Professor at the University was Shinji Suitsu,who studied under Shuzo Kure. He visited Shizuoka prefecture when he collaborated in Kure’s “Actual situation and statistical observation on home custody of mental patients”（1918）. This was confirmed by photographic materials from this time.
 The year after the visit to Shizuoka, Suitsu was sent to the Korean Peninsula. In 1913, Suitsu established the Department of Psychiatry at the Governor-General of Korea Hospital, and the institution had 500 tsubo（approximately 1,650 ㎡）of land within Keijo（Seoul）,with floor space of 160 tsubo（approximately 528 ㎡）and 24 beds.Treatments were performed by Suitsu, an assistant, and 8-9 nurses.The number of hospitalized patients was 30-50 patients per year. Cells had floor heating.
 Keijo Imperial University was established in 1924, and was called Jodai. In 1925, Suitsu retired from his Professorship of Psychiatry at Keijo Medical Professional School. Suitsu was from Kyoto Imperial University, and had studied abroad. In 1925,Suitsu’s father-in-law, and a long-time friend of Shuzo Kure, Seiji Yamane, passed away.
 The professor who took up the position after Suitsu was Kiyoji Kubo, who was originally supposed to go to Hokkaido Imperial University.
 When the medical school was established at Keijo Imperial University in 1926, Kubo was offered a professorship there. Jodai was under the jurisdiction of the Governor-General of Korea, and not the Ministry of Education.
 Later, professors and assistant professors and assistants of Jodai lectured in Mental Science at Keijo Medical Professional School. There was insufficient funding to run two Medical Departments within Seoul, and therefore the staffwere transferred to Jodai, from which they supported the Medical Professional School. Jodai hospital was expanded to 222 beds with a total of 35 physicians, including the hospital director, medical officers, and professors.
 Members of the Medical Department, including professors of Psychiatry, although not near one another, reported homework and submitted subjects for speeches at every annual meeting. Starting from Manjiro Sugihara’s “Supplementary knowledge of induced insanity,”the Japanese Society of Psychiatry and Neurology（original article, 1929）, there is a record of 35 presentations at conferences and published papers,and each person engaged in their own study in this environment. In 1936,Kiyoji Kubo reported his homework on drug addiction at the 35th Annual Meeting of the Japanese Society of Psychiatry and Neurology. This report was on morphine addiction, which was common in the Korean Peninsula at the time,and was presented in “Psychiatria et Neurologia Japonica”with the title “Morphine Addiction.”In 1941, Michio Watanabe became the second professor following Kiyoji Kubo, and held this position until the end of the war in 1945.
 Academic publications of the Japanese Society of Psychiatry and Neurology consist of 15 papers/original articles, 19 summaries of annual meetings and abstracts, and 1 report of homework from an annual meeting. These publications dealt with induced insanity, symptomatic psychosis, sleep disorder, epidemiology, alcohol and morphine addiction, and schizophrenia.