Objective To discuss different methods of operation for congenital dislocation of double hips in school-age children. Method 25 patients (50 hips) were operated with Salter, self-acetabuloplasty and combined operation. Result 22 patients with 44 hips were followed up for 2 to 18 years (an average of 9.5 years) with 86.4% reporting excellent and good results. Conclusion Acetabuloplasty and shelf can effectively increase the width of acetabulaum resulting in a better coverage of the femoral head. So acetabuloplasty and shelf operation is highly recommended because of its wider range of indication and good results. Joint function can regain best after early, continuous, passive and active functional exercise.