The surface reforming of Ti wire by powder metallurgy was investigated in this study. Pure Ni powder, Ni/Ti powder and Ni/ Al powder were used as coating materials. A piece of Ti wire （φ＝1.0 mm） was placed in an alumina crucible, and coating materials （Ni powder, Ni/Ti premixed powder, Ni/Al premixed powder） were filled around the Ti wire. The alumina crucible was vacuum sealed in a quartz tube with 2 ×10 -3 Pa. The quartz tube was heated in an electric furnace for 60 min. For the test piece obtained, microstructure, phase and Vickers hardness were measured. A uniform compound layer was formed when the Ni / Al premixed powder was used as the coating material. The intermetallic compound layer was consisted of （Ti 3 Al＋NiTi） , （Ti 3 Al＋Ti 2 Ni＋τ 4 ） phases. The surface reforming of Ti wire was able to be performed by dipping heat of Ti wire into Ni/Al premixed powder. ［doi:10.2320/jinstmet.J2018005］