An　ultra-low　energy　consumption　continuous　flow　(UECF)　process　was　used　for　enhanced　nitrogen　removal　from　rural　sewage.　The　ammonia　in　sewage　was　first　oxidized　to　nitrite　in　a　bio　trickling　filter　(BTFPN)　supplemented　with　natural　oxygen.　A　stable　nitrite　accumulation　ratio　(NAR)　of　93.2%　was　maintained　by　adding　5　mg/L　NH2OH　every　seven　days.　BTFPN　effluent　was　then　combined　with　certain　portion　of　rural　sewage　(1:1.2　to　1:1.5)　and　introduced　to　an　upflow　anaerobic　sludge　blanket　reactor,　where　the　nitrogen-containing　pollutants　were　removed　by　Anammox　process　(UASBAMX).　Effluent　total　nitrogen　(TN)　of　6.7　mg/L　and　a　TN　removal　efficiency　of　93.7%　were　obtained　when　influent　chemical　oxygen　demand　(COD),　NH4+-N　and　TN　were　321.9,　74.2　and　82.7　mg/L,　respectively.　Advanced　nitrogen　removal,　based　on　the　desirable　cooperation　between　Anammox　bacteria　(Ca.　Brocadia,　2.3%)　and　partial　denitrification　bacteria　(Thauera,　4.2%),　was　achieved　over　300　days　of　stable　operation.　Considering　the　nitrogen　balance,　57.9%　of　nitrate　generated　in　Anammox　was　reduced　to　nitrite　by　partial　denitrification,　and　Anammox　contributed　88.1%　of　nitrogen　removal　and　7.6%　of　denitrification.　Compared　with　conventional　nitrification　and　denitrification　processes,　UECF　requires　no　mechanical　aeration,　no　external　carbon,　produces　76.6%　less　external　sludge,　and　reduces　CO2　emissions　by　92.3%.