The present invention relates to a method for producing whitlockite, and whitlockite produced thereby. A method for producing whitlockite according to one embodiment of the present invention comprises: a step of preparing a precursor solution by mixing a first solution containing a calcium (Ca) ion source material, a second solution containing a magnesium (Mg) ion source material, and a third solution containing a phosphate (PO4) source material; a heat-treatment step of heat-treating the precursor solution; and a step of separating and purifying the precipitate formed in the solution, after the heat-treatment step.