The　Al　2　O　3　abrasion-resistant　ceramics　is　successfully　prepared　by　using　waste　aluminum　sludge　as　the　main　raw　material　with　the　addition　of　a　little　clay,　talc　and　barium　carbonate.　The　crystal　structure　and　microstructure　of　ceramic　are　characterized　by　means　of　XRD,　SEM,　etc.,　and　the　physical　and　mechanical　properties　are　also　tested.　The　results　show　that　besides　the　phase　of　corundum,　a　little　mullite,　Mg-Al　spinel　and　hyalophane　phases　also　exist　in　the　product.　These　phases　are　produced　via　reaction　in-situ,　which　can　inhibit　the　overgrowth　of　Al　2　O　3　grain　in　grain　boundary,　and　improve　the　integral　property　of　the　material.