Congenital diaphragmatic hernia through of Bochdalek foramen, posterolateral diaphragmatic hernia, is the result of a congenital malformation of the posterolateral region of the diaphragm. Bochdalek hernia is not a rare anomaly and is the most common type of congenital diaphragmatic hernia. The defect is more frequently on left [about 5 times]. The purpose of this paper to present the Authors recent experience with two cases of the congenital posterolateral diaphragmatic hernia adult women which was treated surgically in the Dept, Thoracic Surgery, Chosun University Hospital. The postoperative course was uneventful and both of them were discharged without any other complications. Our study and surgical experience was discussed and the literature reviewed.