Objectives: The childhood obesity causes not only physical problems but also psychosocial ones, thus making it difficult to treat than adult obesity. To prove this, study was performed to examine an obese child who was on an oriental medical treatment. Methods: This study was based on the obese child, visited the oriental medical center from March 13th, 2010 to December 22th, 2010. The patient has taken herbal medicine, moxibution, low frequency acupuncture, auricular therapy, and behavior modification. Results: While the patient was treated, his Body weight, Body Mass Index, Fat percents were reduced and the effect lingered for five more months since the treatment. Conclusions: This study shows that herbal medicine is effective on developmental disorder induced. However, further clinical studies are needed.