Materials which have high biocompatibility and not supporting transfer of disease causing carriers are among more popular bone implants. Calcium phosphates identical to natural bone minerals are such materials. HAp could be prepared by various methods from which the level of crystallinity and also particle size depends on. The reaction activity of HAp is determined by chemical, phase and granulometric composition, and by morphology and grain boundaries. Various additives are used to advance mechanical strength. Sol-gel process is a perspective technique to develop ceramic materials from liquid precursors. Low mechanical strength characteristics of HAp restrict the application of HAp implant materials. Sol-gel method gives tools to prepare mechanically resistant materials with high homogeneity level and low thermal expansion coefficient at relatively low temperatures. Preferable minimal thickness of HAp coatings is 100 µm. Coating deposition method has a significant role during the bioactive coatings preparation process for implants and endoprotheses. On the one hand that should promote enough strength coatings binding force to a metal and on the other hand – certain chemical and phase composition, structure and medical-biological properties should be provided.