Red　mud　was　used　as　the　raw　materials　to　prepare　low-cost　red　mud-based　catalysts　through　acid　digestion-alkali　precipitation　coupled　calcination　treatment　method　in　this　study.　XRF,　BET,　H2-TPR,　TG-DTG　and　FT-IR　were　used　to　analysed　the　characteristics　of　the　catalysts.　The　specific　surface　area　of　the　modified　red　mud　was　26　times　higher　than　that　of　the　raw　red　mud.　In　addition,　the　catalytic　activity　of　the　catalysts　was　also　greatly　improved.　H2-TPR　results　showed　that　the　reduction　peak　temperature　of　the　modified　catalysts　moved　towards　the　low　temperature,　and　the　reduction　peak　area　increased,　which　indicated　the　redox　ability　enhancement　of　the　modified　catalysts.　The　toluene　conversion　rate　of　the　raw　red　mud　was　only　11.6%　at　300℃,　whereas　the　toluene　conversion　rate　of　the　modified　red　mud　was　100%.　The　toluene　catalytic　activity　decreased　with　increasing　of　the　toluene　concentration　being　of　1000　~　4000mg/m3.　The　space　velocity　had　a　significant　impact　on　the　toluene　catalytic　activity　of　the　catalysts.　There　was　no　deactivation　or　deterioration　occurred　during　the　stability　test,　which　indicated　that　the　prepared　red　mud-based　catalysts　exhibited　excellent　stability　performance.　©　2021,　Editorial　Board　of　China　Environmental　Science.　All　right　reserved.