<正>Objective:To evaluate the effectiveness of endovenous laser therapy and conventional thera- py on the varicose of great saphenous vein.Methods:Thirty-two patients received endovenous laser thera- py and 32 patients were operated by conventional therapy（high ligation and stripping）.The observation results of great saphenous vein（GSV）were recorded by clinical evaluation and duplex ultrasound examina- tion.And the operating time

intraoperative blood loss

time to become moveable

duration of hospitaliza- tion and degree of feeling pain were compared between the two groups.Results:Compared with conven- tional therapy

laser therapy had good curative effect with less complications and no scars and no pains. There were significant differences between the two groups（P<0.01）.Conclusion:Laser therapy for varicose of great saphenous vein is better than the conventional therapy.It deserves to be widely used in clinical treatment.