Zinc-titanium-calcium hydroxyapatite (ZnTiCaHap) solid solution particles were prepared from starting solutions containing various amounts of zinc, titanium and calcium. Their structures were investigated by X-ray diffraction, field-emission scanning electron microscopy and an energy-dispersive X-ray spectrometer. Calcium hydroxyapatite (CaHap) particles with Zn/cation and Ti/cation ratios of 0 were fine and ellipsoidal. The incorporation of Zn^2＋ and Ti^4＋ ions decreased the crystallinity and increased the particle length. The particle width was almost constant owing to cation exchange. Zn^2＋ and Ti^4＋ ions could be incorporated into ZnTiCaHap crystals at Zn/cation ≤ 0.20 and Ti/cation ≤ 0.03, respectively. A mixture of fine ellipsoidal ZnTiCaHap and long rod-like Zn compounds was obtained under synthesis conditions involving higher Zn/cation and Ti/cation atomic ratios. Ultraviolet-visible (UV-vis) spectroscopy revealed that Zn^2＋ ions increased ultraviolet (UV) absorptive ability at 340‒380 nm corresponding to UVA and Ti^4＋ ions increased UV absorptive ability less than 320 nm corresponding to UVB and UVC in the particles. Particles containing Zn^2＋ and Ti^4＋ ions exhibited strong UV absorption less than 380 nm. The particles formed from the solution with Zn/cation＝0.25 and Ti/cation＝0.03 (named Zn25Ti3) were supported on a cotton fabric. The UV-protective properties of the fabric were enhanced by the treatment, and the cotton fabric had sufficient UV shielding ability. Moreover, the ability of the fabric supported by Zn25Ti3 particles were maintained even after washing twice with an SDS solution.