In 1975, vascularized fibular graft for the treatment of open fracture of tibia and fibula was first reported by Taylor with success in one patient. Later. in 1977 Buncke reported using vascularized free rib to repair traumatic defect of the tibia and mandible. In 1978, O'Brien reported the advantages of the vascularized bone transfer and in our country, Lee, et al reported successful transfer of the vascularized osteocutaneous flap at 1983. The vascularized fibular graft is ideal for bridging segmental defects in long bones, and heal at a rate comparable to normal bone and are not replaced by creeping substitution. In this article, one case of anterior transposition of the vascularized fibulas for the segmen- tal defect of both tibias is reported. Postoperative follow up showed successful union and hypertrophy of both transpositioned fibulas.