It　is　important　to　achieve　short-cut　nitrogen　removal　from　municipal　wastewater　for　saving　energy　and　carbon　source.　However,　a　low　temperature　(10-20°C)　affects　the　actual　application　of　shortcut　nitrogen　removal　from　wastewater.　In　this　study,　a　large　pilot-scale　SBR　was　used　to　treat　real　municipal　wastewater.　The　goal　of　achieving　and　stabilizing　short-cut　nitrification　at　a　low　temperature　was　mainly　investigated.　The　results　indicated　that　through　real-time　control　and　step-feed　operating　pattern,　short-cut　nitrogen　removal　with　nitrite　accumulation　rate　above　95%　and　nitrogen　removal　efficiency　above　96%　was　achieved　at　11.8-25°C.　The　key　factor　of　achieving　and　stabilizing　short-cut　nitrification　in　pilot-scale　SBR　was　the　optimization　of　nitrifying　communities　in　sludge　owing　to　long-term　application　of　realtime　control.