Fine-grained Ti-47Al (at%) alloy was prepared by double mechanical milling and spark plasma sintering (SPS). The morphology, microstructure and phase composition of the Ti-47Al composite powder and the microstructure of the bulk Ti-47Al alloy samples were studied by SEM, XRD and TEM. The results show that the double mechanical milled powder is composed of TiAl and Ti3Al phases, with regular particle shape and 20-40 μm particle size, as well as uniform interstructure. The SPSed bulk of Ti-47Al alloy consists of main phase TiAl and few phases Ti3Al and Ti2Al. With the sintering temperature increasing, the Ti3Al phase becomes more. For the bulk sintered at 1000 oC, the equiaxed grain microstructure is achieved with sizes in the range of 100-250 nm. For the bulk sintered at 1100 oC, the sizes of equiaxed grain significantly are increased. The SPSed bulk samples exhibit dense microstructure without pores, consisting of equiaxed TiAl phase and lamellar Ti3Al phase