Great saphenous vein (GSV) valve incompetence is one of the most common manifestations of chronic venous insufficiency (CVI) in the lower limbs. There have been no reported attempts to repair the valve prior to the appearance of varicose morphology.We describe two cases. Before surgery, the male patient had obvious pigmentation in the ankle area, and the female patient had obvious pain and swelling in the lower limbs after prolonged standing. Neither patient has obvious varicose veins. After retrograde venography, both patients were found to have severe reflux of the GSV valves (Kinster IV). We performed internal valvuloplasty and sleeve wrapping in two patients.After surgery, both patients had a significant improvement in symptoms and no particular complaints. Vascular ultrasound also suggested a good outcome.This surgery is safe and feasible in the treatment of early GSV incompetence, with good short-term results; long-term results remain to be seen.