Pyrochlore-free nano-sized 0.90Pb(Mg 1 / 3 Nb 2 / 3 )O 3 (PMN)-0.10PbTiO 3 (PT) and 0.65PMN-0.35PT powders were synthesized from oxides via a high-energy ball milling process. Single perovskite phase PMN-PT were readily formed from the oxide mixture after milling for only 2h. The grain size calculated from X-ray diffraction (XRD) patterns of all samples is about 20nm, which is in agreement with the observation from scanning electron microscopy (SEM) (20-50nm). PMN-PT ceramics were obtained by sintering the milled powders at temperature from 1000 to 1100 o C for 2h. The dielectric, ferroelectric properties of the PMN-PT ceramics derived from the synthesized powders were comparable with the reported results in the literature.