In this work three different preparation techniques of biphasic calcium phosphate bioceramic (consisting of both hydroxyapatite and β-tricalcium phosphate) are compared: sintering of synthetic calcium-deficient apatites, sintering of mixture of synthetic hydroxyapatite and apatitic tricalcium phosphate and sintering of mixture of synthetic hydroxyapatite and calcium metaphosphate glass. Two different hydroxapatite and β-tricalcium phosphate phase ratios were investigated: 20/80 and 60/40. It can be concluded that microstructure of biphasic ceramics is not only dependent on sintering conditions, but also on starting materials and preparation technique. In all cases it was possible to obtain controlled phase composition by varying overall Ca/P ratio of starting materials.