Abdominal cocoon syndrome is a rare cause of intestinal obstruction, which is difficult to diagnose preoperatively. We report a case of abdominal cocoon. A 47-year-old male patient was referred to the general surgery department with complaints of abdominal pain, distension, nausea, vomiting for one day. The abdominal CT examination detected dilated small intestinal loops clustered in the abdomen surrounded by a saclike membrane. During exploratory surgery, a capsular structure was identified in the lower quadrant with a regular surface that was solid-fibrous in nature. The combination of physical examination, imaging signs and the medical history, may be helpful in diagnosis.