Sine 1961, Dr. Safar postulated the new form of patient, so called "progressive patient care", the hospital service in all countries are fashioned with intensive therapy unit. Particulary the- World Federation Society of Anesthesiologists who have discusincerly at several International congress. we were interested from the literature and visited England, Denmark, United States. and Japan. Of course in Korea, the intensive therapy unit developed from the recovery room and is thus intimately oonnected with anesthesiologists. Here we reviewed with literature and introduced the activities af the intensive therapy unit of Hanyang University Hospital from May 1972 to October 1973, from the point view of the definition, building design, location, capacity, equipment, staff organization and charge of patient, several problems and regulations. Furthermore we recommended with the following new ideas for establishment in hospital of an intensive therapy. unit. a. The design should be arranged on the same floor (OR-RR-Anes.-1TU) and in central part of building. b. Several isolation rooms should be made in 1-T-U. c. One central monitoring system will serve each units. d. The 1-T-U equipment should be used with wall trolly system. e. The regulations of 1-T-U should be noted and advocated by all hospital members. f. The beds in 1-T-U should be arranged with open system.