Aluminium　titanate　was　synthesized　from　waste　aluminum　slag,　which　was　a　by-product　of　anodizing　oxidation　surface　treating,　and　TiO2　by　solid　state　sintering　method.　The　influence　of　V2O5　additive　on　the　purity　and　microstrcuture　of　aluminium　titanate　was　examined.　X-ray　diffraction　(XRD)　and　scanning　electron　microscopy　(SEM)　were　used　to　characterize　the　crystalline　phases　and　microstructure　of　aluminium　titanate.　The　results　show　that　the　purity　of　90%　is　obtained　for　the　aluminium　titanate　prepared　using　the　aluminium　slag,　TiO2　and　V2O5　of　1.0wt%　as　additive,　and　the　bulk　density　of　the　aluminium　titanate　is　up　to　the　highest,　3.10g/cm3,　porosity　is　9.8%　and　bending　strength　is　28.15MPa.