The hydroxyapatite coatings on an anodized titanium substrate were prepared by electrodeposition technique.Properties of coatings were investigated by scanning electron microscopy(SEM),X-ray diffraction(XRD)respectively.The results show that hydroxyapatite crystal is porous-like flakes at the beginning time of the deposition.The thickness of the coatings increase and its morphology changes from porous-like flakes to petal-like flakes with the increase of voltage,time and concentration of electrolyte.The bonding strength of coatings with the substrate is improved by anodic oxidation.