A variety of surgical modalities for fractures of patella have been described. We used arthroscopic reduction and percutaneous screw fixation for six cases of longitudinal fracture of patella. Ages of the patients ranged from 25 to 33 years. the postoperative regimen was one week long leg splint for reducing the pain, followed by continuous passive range of motion exercise of the knee including active one and quadriceps strengthening exercise until the full range of motion was gained, with progressive partial to full weight bearing with crutches. The follow-up period was from 12 to 54 monhts. Results were assessed subjectively and objectively with retrograde study. The full range of knee motion was recovered from 20 to 35 days postoperatively, The radiographic bone union was achieved from 31 to 42 days. And all patient had good results according to Lysholm and Gillquist scoring system. We had no experience of complication except one which is prominence of screw end. So, we believed that the arthroscopic reduction and percutaneous cannulated screw fixation for longitudinal fractures of patella is the useful surgical method.