In recent years, with the wide application of laparoscopy in various types of general surgery, we have carried out laparoscopic dissection of the traffic branch veins for the treatment of saphenous varicose veins and venous ulcers of the lower limbs, and achieved good results. Procedure: Using continuous epidural anesthesia, the head is placed low and the knee is appropriately padded, and the branches and trunks of the saphenous vein are first dissected by high ligation, and a stripper is placed downward to the knee. A 25px long incision is made on the medial tibia below the tibial ramus, a 25px diameter Trocar and laparoscope are placed, CO2 gas is filled, another small incision is made, a 12.5px diameter Trocar is placed, blunt deep subfascial lax tissue is removed, and after direct laparoscopic exploration of the traffic branch vein, the vein is directly dissected with an ultrasonic knife up to the top of the medial ankle, usually 3 to 6 branches are dissected. The laparoscope was withdrawn, the saphenous vein was evacuated, and the superficial varicose veins of the lower leg were sutured in sections. All cases were successful, with no significant intraoperative bleeding, and all postoperative limb symptoms disappeared, the superficial varicose veins disappeared, the ulcers healed, and the pigmentation of the lower extremities significantly subsided. Although the traditional high saphenous vein ligation and stripping can interrupt the “circulatory reflux” of blood between the deep and superficial venous systems of the lower limbs, the efficacy is not satisfactory for patients with traffic branch insufficiency. Traditional traffic branch vein ligation solves the problem of blocking traffic branch veins, but the incision of lower extremity is more than 250px long, which is very traumatic and easy to be complicated by incision infection, non-healing incision and fluid necrosis under the flap after surgery, so it is used with clinical caution. Laparoscopic lower limb traffic branch vein dissection, using modern high-tech laparoscopic equipment and ultrasonic knife system, to disconnect the lower limb traffic branch vein by minimally invasive method, completely achieve the same efficacy of surgery, and the incision is small and far from the lesion skin, effectively avoiding various complications of surgery. SEPS surgery has the advantages of safety, minimally invasive, and exact efficacy, and will definitely become the “gold standard” for the treatment of varicose veins and venous ulcers of the lower extremities.