The　pulsed-SBR　process　was　used　to　achieve　the　advanced　nitrogen　removal　via　nitrite　pathway　from　landfill　leachate.　The　effect　of　feed　frequency　on　the　process　characteristic　of　pulse-SBR　was　discussed　theoretically　and　nitrogen　removal　efficiency　formula　was　established.　The　operation　of　the　SBR　under　alternating　aerobic-anoxic　conditions　was　optimized　by　process　control.　The　experimental　results　showed　that　up　to　95.8%　NH4+-N　and　90.0%　TN　were　eliminated　via　nitrite　from　leachate　in　the　pulsed-SBR　and　advanced　nitrogen　removal　was　successfully　obtained.　The　accurate　on-line　process　control　was　main　factor　of　the　achievement　and　stabilization　of　partial　biological　nitrogen　removal.　With　increasing　feed　frequency,　the　external　carbon　source　dosage　decreased　obviously.　Therefore,　the　objectives　of　saving　external　carbon　source　dosage　and　achieving　advanced　nitrogen　removal　were　obtained　when　pulsed-SBR　was　used　to　treat　landfill　leachate.