Carbon fiber reinforced Ti-Al composite was fabricated through infiltration-reaction sythesis process, using Ti powder, Al and carbon fiber as starting materials. The results show that the interface reaction between carbon fiber and Al intensified gradually, the content of TiAl3 increased firstly and then decreased, and Al4C3 and TiC increased with increasing of temperature. Forming of Al2O3 took place in the composite owing to oxygen participating in high temperature stage. The microstructure and phases composition were analyzed by SEM and XRD, and reaction mechanism of the synthesis process among the components of carbon fiber reinforced Ti-Al composite was investigated