Obesity is known as a cause of variousdisease. Sterility is one of disease related to obesity. We had experienced an Obese patient accompanied by sterility. From January. 28. 2004 to April. 30. 2004. We applied Kobonkunyangdan and Ojayounjonghuan(固本健陽丹合五子衍宗丸), electrolipolysis and LCD(low alorie diet), behavioral theraphy, auricular acupuncture. Through this obesity treatment during 3 months, total weight loss was 23.8kg, reduction of percent body fat was 5.5% (from 22.8 to 17.3), reduction of BMI was 7.3kg/㎡(from 32.6 to 25.3), increase in sperm count and sperm motility was 50~60%, hepatic index was improved.