Foil-Fiber-Foil (FFF) method was used to prepare Ti6Al4V-matrix composites reinforced by SiC fibers without coating, with C coating and Cu/Mo duplex coatings, respectively. The mechanical properties as well as interfacial microstructure of the as-prepared composites were compared. Moreover, the interfacial reaction characteristics of the SiCf/Cu/Mo/Ti6Al4V composites were also investigated by different vacuum heat treatments. The results show that for as-prepared samples, Cu/Mo coating is better than C-coating to improve the interfacial microstructure and properties of titanium matrix composites; the growth kinetic expression of the SiCf/Cu/Mo/Ti6Al4V interfacial reaction at 900 ℃ is H=1.380t1/2+5.397