Congenital hip dislocation is almost non-existent in North Korean children. This is because children there are carried on their backs rather than held. In the case of congenital hip dislocation, the newborn child has to be carried on his back and carried with both legs split upwards. The key to the prognosis of this disease is early diagnosis. The earlier the treatment, the better the results. As the age increases, the heavier the pathological changes, the worse the treatment effect. Up to 1 year of age, the method with stirrup sling is used. If the hip joint is found to be subluxed or dislocated at 8-9 weeks after birth, a stirrup sling can be used for 6-9 months. Only the extension activities of the hip joint are restricted, and all other activities are not restricted. The majority of children can be repositioned and no aseptic necrosis of the femoral head will occur, except for a few cases where there are factors in the hip joint that prevent repositioning. The dressing sleeve method and the abduction as a swaddling support method are also used to maintain the hip for more than 4 months. At the age of 1 to 3 years, a portion of children with mild disease can still be treated with the stirrup sling method. If it cannot be reset after 4-6 weeks of use, it can be replaced by the method of manipulation and plaster fixation. Under general anesthesia, the child is placed in a supine position with the hip and knee joints on the affected side flexed by 90°, and traction is applied in the direction of the long axis of the thigh, while the greater trochanter is compressed so that the femoral head is incorporated into the acetabulum. After reaching the level of correction, because the frog cast tends to affect the development of the femoral head and produce ischemic changes, the frog cast is no longer used in domestic and foreign pediatric surgery and is replaced by the “herringbone cast”, which means that the hip joint is only abducted about 80° and the knee joint is slightly flexed, and the child is allowed to step on the ground with the cast after it is put on. Above 4 years old: At this time, the degree of dislocation is aggravated, and the secondary changes of bone and soft tissue are more serious, so it is difficult to succeed in manual rehabilitation. Schalter pelvic osteotomy is performed. Femoral rotational osteotomy should be added for femoral neck anteversion angle greater than 45°. Adults: Charlie’s internal pelvic osteotomy can be considered for adults. If one side of the hip is dislocated to a higher degree and fails to move down by traction, with severe pain and affecting life, subtrochanteric osteotomy is feasible to change the negative gravity line and improve the symptoms.