Inguinal hernia is a common disease of middle age and older. This case is one of huge and rare inguinal hernia with the size of 30 × 30 × 35 cm. A sixty years old man was referred to hospital with a big mass in left inguinal area and problem of walking and wearing of clothes. At physical examination, a massive left-sided inguinal hernia was observed. The surgery operation was carried out with the technique of Bassini and using of mesh the tissues of inside sac include omentum and gut returned into the abdomen manually. The patient was followed for 3-6 months. Similar cases were reported from India and Japan previously.