To　improve　the　removal　efficiency　of　organics　and　ammonia　nitrogen　by　filtration　in　advanced　wastewater　treatment　process,　air　was　supplied　to　filter　bed　via　backwashing　air　distribution　pipes　during　filtration.　This　kind　of　filter　was　called　aerobic　filter　(AF)　in　this　article.　Contrast　tests　were　done　between　AF　and　deep　bed　equal　coarse　ceramic　filter　(DF)　with　the　same　influent,　which　was　the　secondary　effluent　of　a　municipal　wastewater　treatment　plant　in　north　China.　Results　showed　that,　AF　had　high　flexibility　for　the　quality　variation　of　influent.　Chemical　oxygen　demand,　ammonia　nitrogen,　turbidity　and　suspended　solids　in　effluent　of　AF　were　lower　than　those　in　effluent　of　DF　with　the　same　influent　during　the　most　of　test　time.　In　contrast　with　DF,　the　worse　the　influent,　the　higher　performance　of　AF　was　observed.　Besides,　the　initial　headloss　of　AF　was　higher　than　that　of　GF　and　the　headloss　increasing　rate　was　higher　too.　Most　headloss　was　distributed　at　the　top　bed　for　GF　while　the　headloss　of　AF　was　distributed　evenly　along　the　bed　profile.　At　the　same　operation　condition,　AF　consumed　shorter　run　time　than　GF.