The paper presents the first investigation results for the hydroxyapatite films received by hf magnetron sputtering.The thin films were investigated by the TEM and HEED methods, and the thick films by the methods of SEM, X-ray phase analysis and IR-spectroscopy. It has been stated that the deposited films is a composite, namely, in the amorphous matrix the crystallites are distributed. After the prolonged (10-15 min) beam treatment the formation of the block crystal structure with the block size as large as 5 mkm from the HA subgrains of the same orientation (a=0,942 nm, c=0,687nm) were observed. The small amount of the nanocrystalline phase is CaO. The structure of the HA film annealed in air on an object grid at about 1170 K for 15 min is formed by the blocks of HA nanocrystals. The crystal phase CaO was not revealed. The electron diffraction pattern of the HA film annealed in air on the object grid at 1170 K during one hour shows the whole set of diffraction maxima, corresponding to the HA lattice, which suggests the synthesis completion. According to the data of the x-ray phase analysis, the energy dispersion analysis (with Ca:P=1.5) and the IR-spectroscopy, the thick films composition corresponds to that of the HA.

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