Ti-25Al-10Nb-3V-1Mo alloy has been prepared by gas atomization with atomizing pressure above 8 MPa. The cooling rate of 5 x 10(3) similar to 3x 10(5) K s(-1) was obtained according to secondary dendritic arm spacing, as the particle size is 30 similar to 300 mu m. It is known that in the big particles two dendrite morphologies can be found, cellular dendrite and well-developed dendrite, and in small particles there exists only well-developed dendrite. The surface of particles is characteristic of solidification that is identical to the observation on the cross-sectional views. The micrographs of cross-sectional views show that the big particles, whether of cellular dendrite or well-developed dendrite, solidify by multiple nucleation events while the small particles of well-developed dendrite solidify from a single nucleation event. The microstructure of the alloy consists of single beta(0) phase.