Objectives The aim of this study is to survey the present scales of constitutional medical service market on the base of Korean medical service market following 2006, 2008 year survey. Methods This survey was conducted from Nov. 1 to Dec. 15, 2011 by offline mail. A questionnaire including personal information, general information, and management related to constitutional medicine of Korean medical institution was sent to each subject with a returned envelope. The subjects were asked to complete the questionnaire and 108 data were collected and analyzed. Results This study revealed that the 62% facilities of all Korean medical clinics in Korea are using constitutional medicine for patients. The proportion of constitutional medical service was 13.7% in Korean medical care insurance and 23.5% in total Korean medical service market. Conclusion It is assumed that the scales of total Korean medical service market seemed to be 3,974,425 million won and the scales of total constitutional medical service market seemed to be 929,404 million won.