Objective: To report the curative effects of modified arterialized venoous flap of palmaris longus on dorsal skin and tendon defects in fingers. Methods: Two parallel veins of palmaris longus identified at the distal end of the ipsilateral forearm were taken as the blood supply of the flap. The anastomosis between arteries and veins were ligated, accompanied with the protecting of peritendinous vascular net. Antrorse transplantation of the flap was performed.  Results: All flaps of 6 cases survived well. The results of follow-up of 4 to 14 months, averagely 8.5 months, proved that, the transplanted flaps was soft and elastic, which fitted to the level of fine, according to TAM standard. Conclusions: Modified arterialized venoous flap of palmaris longus is valuable for treating finger defects, for its satisfied blood supply and repair effects.