Hydroxyapatite (HAp) coated on titanium dioxide (TiO2) thin films has been developed to supplement the defects of both TiO2 and HAp. Thin films have been prepared by pulsed laser deposition (PLD) method using HAp and HAp(10%)+TiO2 targets. X-ray diffraction (XRD) shows that there are many small peaks of Ca-10(PO4)(6)(OH)(2) crystal, and no impurity other than HAp is detected in HAp films prepared using pure HAp target. The composition ratio of the film was analyzed by X-ray photoelectron spectroscopy (XPS). HAp coatings on TiO2 thin films have been prepared using HAp(10%)+TiO2 targets. XRD and XPS measurements suggest that crystalline HAp+TiO2 thin films are obtained by the PLD method using HAp(10%)+TiO2 target. (c) 2005 Elsevier B.V. All rights reserved.