Hydroxyapatite　(HAP)　has　been　widely　used　for　repairing　or　substituting　human　hard　tissues.　In　this　paper,　two　typical　ionic　surfactants,　cation　hexadecyltrimethylammonium　bromide　(CTAB)　and　anion　sodium　dodecyl　sulfate　(SDS),　were　used　for　rapid　conversion　of　HAP　from　abalone　shell.　From　field　emission　scanning　electron　microscopy　(FESEM),　the　prepared　HAP　is　flake-like　structure.　From　X-ray　diffraction　(XRD),　Fourier　transform　infrared　spectroscopy　(FTIR)　and　thermal　analysis,　these　samples　contain　a　small　amount　of　calcium　carbonate　whose　content　gradually　increases　by　increasing　the　surfactants.　The　results　showed　that　the　HAP　formed　fast　on　the　layer　of　abalone　shell　powder　with　the　assistance　of　CTAB　and　SDS.　(C)　2017　Elsevier　B.V.　All　rights　reserved.