Femoral intertrochanteric fracture is a fracture between the base of the femoral neck and the level of the lesser trochanter, and is also a frequent osteoporotic fracture in the elderly. With the aging of society, the incidence of this fracture shows a yearly increasing trend. With conservative treatment of femoral trochanteric fracture, most of them can heal, but they are prone to hip inversion, shortening of the lower limb, and patients need to be bedridden for a long time with more complications, and the morbidity and mortality rate is 15-20%, therefore, surgery is mostly advocated at present. Femoral intertrochanteric fracture is often found in the elderly, and the incidence of femoral intertrochanteric fracture is on the rise with the aging of the population and the rapid growth of the elderly population. The aging of organs and underlying diseases in the elderly make the traditional bedside traction treatment prone to many serious complications, such as crushing pneumonia, decubitus ulcer, deep vein thrombosis of the lower limbs, urinary tract infection, hip inversion and shortening of the lower limbs, which have high mortality and teratogenic rates. Most scholars have made strong internal fixation of intertrochanteric fractures and early patient activity the standard of care. In conclusion, with the increase of elderly people, the number of visits for femoral trochanteric fractures has also increased.DHS, as a new type of intramedullary fixation system, has the advantages of short operation time, easy operation, little trauma, less bleeding, early postoperative functional exercise, early rehabilitation, shortening the bed rest time of elderly patients and reducing the complications of prolonged bed rest. It is suitable for surgical fixation of all types of geriatric intertrochanteric fractures and is an ideal treatment option for geriatric intertrochanteric fractures.