With　environmental　protection　of　water　resources,　as　well　as　the　serious　shortage　of　water　resources　caused　by　the　increasing　emphasis　on　a　variety　of　questions,　a　sewage　treatment　plant　sewage　treatment　standards　improve　year　by　year,　by　the　quality　of　the　once　evolved　to　the　current　quality　and　quantity　should　be　increased　at　the　same　time　.　Magnetic　separation　technology　is　that　for　this　emergency　situation　and　put　forward.　Because　of　its　highly　efficient　sewage　treatment　capacity　of　sewage　treatment　has　become　one　of　the　hot　areas　of.　In　this　paper,　magnetic　separation　technology　at　the　Beijing　Qinghe　Emergency　Sewage　Treatment　Plant　for　the　practical　application　of　a　brief　introduction　on　the　principle　of　its　work　and　future　need　to　be　addressed.　©　2011　IEEE.