This　study　adopted　a　combined　system　comprising　an　up-flow　anaerobic　sludge　blanket　(UASB),　Anoxic/Oxic　(A/O)　reactor,　and　anaerobic　ammonium　oxidation　(anammox)　reactor　(ANAOR)　for　the　advanced　treatment　of　actual　landfill　leachate　through　partial　nitrification　and　anammox.　The　system　influent　was　a　liquid　consisting　of　raw　leachate　and　domestic　wastewater　mixed　at　a　ratio　of　1:5,　with　rho(CODcr),　rho(NH4+-N),　and　rho(TN)　values　of　500-600,　380-400,　and　390-410　mg/L,　respectively.　After　treatment,　the　same　three　indicators　for　the　final　effluent　were　63-70,　29.04,　and　10.30　mg/L,　respectively.　This　study　investigated　synchronous　methanogenic　denitrification　and　removal　of　carbon　and　nitrogen　in　the　UASB,　followed　by　denitrification　in　the　A/O　ANAOR　through　the　coupling　of　partial　nitrification　and　anammox.　The　test　results　indicate　that　when　the　amount　of　dissolved　oxygen　in　the　A/O　reactor　was　controlled　at　0.30-0.50　mg/L,　partial　nitrification　occurred,　with　the　accumulation　rate　of　nitrite　nitrogen　being　stable　at　86.09%.　The　residual　ammonia　nitrogen　and　nitrite　nitrogen　produced　by　partial　nitrification　were　subsequently　removed　through　anammox　in　the　A/O　and　ANAOR,　leading　to　the　advanced　removal　of　TN　through　the　combined　system.　The　system　therefore　addresses　two　current　issues　in　the　treatment　of　landfill　leachate:　difficulty　complying　with　requisite　standards　for　TN　in　effluent　after　biological　treatment　and　the　high　costs　of　external　carbon　sources.