Superior mesenteric artery (SMA) syndrome is a rare clinical disease. We present a case of a 15-year-old girl with complaints of vomiting and epigastric pain during on admission. Her general appearance was tall and thin. She had the upper gastrointestinal (UGI) barium study, angiography and abdominal sonography performed to confirm the diagnosis of SMA syndrome. She received medical treatment and was discharged after the symptoms were relieved. Her followup had a smooth course in our out-patient department.