The　aluminum　based　MOFs　compound,　MIL-96(Al),　has　been　studied　as　a　luminescence　sensor　by　incorporating　of　Eu3+　ions,　which　renders　the　compound　strong　red-light　emission.　The　as-synthesized　MIL-96(Al):Eu3+　nanocrystals　exhibit　water　dispersibility　and　environmental　stability,　which　are　general　requirement　for　an　ideal　sensing　material.　The　MIL-96(Al):Eu3+　nanocrystals　show　excellent　selective　detection　ability　on　Fe3+　ions　in　aqueous　solution　with　value　of　low　detection　limit　20　RM.　Meanwhile,　it　also　exhibits　excellent　selective　detection　ability　on　CrO42-　and　Cr2O72-　in　aqueous　solution　with　value　of　low　detection　limit　10　and　22　mu　M,　respectively.　The　results　of　this　study　show　that　MIL-96(Al):Eu3+　nanocrystals　could　be　used　as　a　multi-responsive　luminescent　senor　for　Fe3+　and　Cr(VI)　species　in　aqueous　solution.　The　possible　luminescence　quenching　mechanism　has　also　been　discussed.