We want to understand body composition and states of obese patients and the clinical studies of obesity attribute to Dept. of Oriental Rehabilitation Medicine. Methods: The clinical studies were done on 42 cases of obese patients who were treated by obesity clinic in Dept. of Oriental Rehabilitation Medicine Dae-Jeon Oriental medical hospital in Dae-Jeon University from May 2000 to September 2000. We checked body composition using Inbody3.0. Results: Sexual ratio on this report is 1:4.98(male: female). Abnormal eating is Major cause of obesity that has caused orthopedic disease. Increasing of BMI, fluid, protein and mineral mass decrease.