Diatomite　materials　coated　with　antimony-doped　tin　oxide　(ATO)　were　prepared　by　the　co-precipitation　method,　and　characterized　by　means　of　the　techniques,　such　as　X-ray　diffraction,　Fourier　transform　infrared　spectroscopy,　scanning　electron　microscopy,　transmission　electron　microscopy,　selected-area　electron　diffraction,　X-ray　fluorescence　spectroscopy,　and　N-2　adsorption-desorption　measurement.　It　was　shown　that　the　coated　ATO　possessed　a　tetragonal　rutile　crystal　structure,　and　the　ATO-coated　diatomite　materials　had　a　multi-pore　(micro-　meso-,　and　macropores)　architecture.　The　porous　ATO-coated　diatomite　materials　exhibited　excellent　electrical　conductive　behaviors.　The　best　conductive　performance　(volume　resistivity　=　10　Omega　cm)　was　achieved　for　the　sample　that　was　prepared　under　the　conditions　of　Sn/Sb　molar　ratio　=　5.2,　Sn/Sb　coating　amount　=　45　wt%,　pH　=　1.0,　and　reaction　temperature　=　50　degrees　C.　Such　a　conductive　porous　material　is　useful　for　the　applications　in　physical　and　chemical　fields.　(C)　2012　Elsevier　B.V.　All　rights　reserved.