The　evolution　of　radial　texture　and　microstructure　of　Cu-Nb　microcomposite　wires　was　investigated　using　scanning　electron　microscopy　with　electron　back-scattering　diffraction.　Cu　matrix　shows　a　major　＜111＞　fiber　texture,　and　the　intensity　of　which　increases　from　the　surface　to　the　center;　Nb　phase,　however,　shows　a　major　＜110＞　fiber　texture　without　significant　change　in　the　intensity　along　the　radial　direction.　The　microhardness　is　determined　by　both　the　interface　area　density　and　＜111＞Cu　texture.　The　texture　hardening　is　the　dominant　influence　on　the　change　of　radial　microhardness.　©　All　right　reserved.