The　novel　partial　nitrification　endogenous　denitrification　and　phosphorus　removal　(PNEDPR)　process　can　achieve　deep-level　nutrient　removal　from　low　carbon/nitrogen　municipal　wastewater　without　extra　carbons.　However,　its　performance　is　limited　by　long　hydraulic　retention　time　(HRT)　and　low　specific　endogenous　denitrification　rate　(r(NO2)).　This　study　aimed　at　investigating　the　effects　of　two　improving　strategies　on　PNEDPR.　One　was　decreasing　both　anaerobic　and　anoxic　reaction　time　for　shortening　HRT　from　55　h　to　17.5　h.　The　other　was　temporarily　discharging　orthophosphate-rich　supernatant　for　balancing　the　competition　between　phosphorus　and　glycogen　accumulating　organisms　to　further　raise　r(NO2)　without　deterioration　of　phosphorus　removal.　Results　revealed　that,　desirable　nutrient　removal　was　obtained,　as　average　effluent　concentrations　of　total　nitrogen　and　orthophosphate　were　8.4　and　0.5　mg/L　with　their　average　removal　efficiencies　of　86.8%　and　90.9%.　High-throughput　sequencing　analysis　revealed　that,　Candidatus_Competibacter　conducted　nitrogen　removal　endogenous　denitrification　and　Candidatus_Accumulibacter　and　Tetrasphaera　ensured　phosphorus　removal.