Ca3CO4O9　ceramics　were　prepared　by　sol-gel　method　and　spark　plasma　sintering　(SPS)　technique.　The　influence　of　SPS　on　the　phase,　microstructure　and　electrical　properties　of　the　ceramics　were　investigated　by　XRD,　SEM,　etc.　The　results　show　that　plate-like　powders　and　SPS　process　are　important　to　form　texture.　The　possible　reasons　of　orientation　are　the　plate-like　grain　and　pulsed　magnetic　field　derived　from　pulsed　current　in　the　SPS　process.　In　our　experimental　range,　the　orientation　degree　of　Ca3CO4O9　bulk　increases　from　0.75　to　0.87,　and　electrical　resistivity　decreases　from　6.24　X　10(-5)　Omega　m　to　5.59　X　10(-5)　Omega　m,　when　the　SPS　temperature　is　from　750　degrees　C　to　900　degrees　C.　In　addition,　Ca3CO4O9　bulk　shows　classical　electrical　characteristic　of　semiconductor,　i.e.　the　electrical　conductivity　of　samples　increases　with　temperature　increasing.　The　maximum　electrical　conductivity　is　obtained　at　700　degrees　C　for　P-type　Ca3CO4O9　compounds　when　the　SPS　temperature　is　850　degrees　C.