The hypereosinophilic syndrome consists of peripheral blood eosinophilia of 1500/ mm3 or more without a known cause, plus signs and symptoms of organ eosinophilia. We report a case of hypereosnophilic syndrome with cutaneous manifestation. A 31 year-old female had intermittent fever, sbdominal pain, anemia, systolic murmur, hepatosplenomegaly, cheat discomfort, dry cough without rales, and skin-colored wheal on the trunk. Diagnoais of hypereosinophilic syndrome wss established by clinical findings, marked blood eosinophilia without a known cause, bone marrow aspiration and biopsy, liver scan, and histopsthologic findings of the skin.