Aluminium　titanate　was　synthesized　using　waste　aluminium　sludge　and　chemical　pure　TiO2　powder　as　raw　materials.　Effect　of　different　compositions　on　crystal　structure　and　contents　of　target　product　was　discussed.　XRD　results　showed　that　four　crystal　phases,　aluminium　titanate,　perovskite,　rutile　and　aluminum　oxide,　are　formed　in　the　sintered　samples.　The　content　of　aluminium　titanate　increases　first　and　then　decreases　with　the　decrease　of　the　content　of　waste　aluminum　sludge.　When　the　content　of　the　sludge　is　65.52wt%,　the　content　of　aluminium　titanate　reaches　the　maximum　of　86.1wt%.