Abstract Bioactive hydroxyapatite (HA) coating is applied on a commercially pure Ti by electrophoretic deposition (EPD). Optimizing the structure necessary to obtain stable layer and best corrosion protection. The EPD was conducted at constant voltage of 20, 30, 40 V for 30 min in HA/DMF (dimethylformamide) suspension. Uniform HA layers with Ca/P ratio 1.82 were successfully deposited surface. ...