To gain ceramic coatings with biomechanical properties and meet the demand of clinical medicine, a (ZrO2)/hydroxyapatite (HA) composite ceramic coating was prepared by micro-arc oxidation in electrolyte with Ti6Al4V as substrate. The composition and the morphology of the coating were characterized by EDS and SEM, respectively. The mathematical model of biomechanics properties for the porous coatings was established and modified. The biomechanical properties of the coating were investigated by the combination of theoretical calculation and experiments. Results show that the (ZrO2)/HA composite coating of medical titanium alloy has better biomechanical properties than the individual hydroxyapatite ceramic coating. It is concluded that the mechanical properties and porosity of the bioceramic coating are related to the new phases. The mechanical properties of the ceramic coating can be better researched by the combination of theoretical model and experiments, and the established mathematical model is reasonable with certain theoretical meaning.