In order to salvage the extremity of dog with marked ischemia from extensive damage of the artery, an operation, diversion of saphenous artery and vein with the anterior tibial artery and vein was tried. The results showed that this operative technique was feasible as a method of treatment. Basing on this fact, the diversion of the saphenous vein in situ with the femoral artery, combined with selective extirpation of the valve of thd vein was used to treat 14 cases (15 limb) of high obliteration of artery of the lower extremities with good results.