The intertrochanteric fracture of the femur are seen in elderly patients who are highly vulnerable to generalized osteoporosis and various senile disease. Firm internal fixation and early ambulation is a goal of treatment. The morbidity and mortality after fracture remain high despite of the development of various devices. For this purpose, compression hip screw becomes popular recently. The purpose of this report is to assess the availability of compression hip screw in the intertrochanteric fracture in the senile osteoporosis by the review of 107 cases from Jan. 1990 to Jan. 1996. The result were as follows : 1. Eighty-three cases(77.6%) were unstable fractures. 2. The lag screw position in the femoral head of 76 cases(71%) were centerd 3. The average length of sliding of the lag screw was 9.9mm. 4. Satisfactory results were obtained in 91% of patients by the functional class of Clawson.