The nHA Ti-based biomedical composites were prepared by powder metallurgy

and effects of nano-hydroxyapatite on microstructure and performance of Ti-based biomaterials prepared were investigated by XRD（X-ray diffraction）

EDS（energy dispersive spectrometer）

SEM（scanning electron microscope） and compression elastic modulus testing.The results show that the major phase is Ti phase

and Ti2O

Ti5P3

and CaTiO3 are generated and distributed in the around of Ti phase.The addition of nano-hydroxyapatite can change the sintering property and increase the porosity of the materials prepared.Compared to pure Ti specimen

the compressive elastic modulus of nano-hydroxyapatite/Ti biomaterial is reduced by a half

which is near to the human cortical bone’s.The biomineralization process and cell activity analysis also show that the nano-hydroxyapatite /Ti biomaterial has better biological activity

and it is more suitable for human hard tissue replacement and repairment.