Catalytic　wet　air　oxidation　technology　was　used　to　study　the　landfill　leachate　collected　from　a　refuse　transfer　station　in　Beijing.　This　experiment　was　carried　out　in　a　high　temperature　and　high　pressure　reactor,　using　Fe2+　as　the　catalyst　and　H2O2　as　the　oxidant.　Meanwhile,　the　impacts　of　temperature,　residence　time,　catalyst　types　and　its　dosing　quantity　on　the　degradation　of　leachate　were　researched.　The　results　showed　that　when　the　temperature　reached　120℃　and　the　residence　time　was　60　minutes,　the　COD　removal　rate　of　the　effluent　reached　91%,　under　the　conditions　of　the　mass　ratio　of　Fe2+　was　1/6　and　the　equivalence　ratio　of　H2O2　was　1　according　to　the　initial　COD　of　landfill　leachate.　©　2016,　Science　Press.　All　right　reserved.