The invention provides a technology for removing nitric oxide in coke oven exhaust gas at low temperature. Nitrogen and water are generated through a redox reaction between nitric oxide in the exhaust gas and a reducing agent, namely ammonia gas, at 240-260 DEG C; a catalyst comprises the following active components in parts by weight: 15-23 parts of TiO2, 17-22 parts of Ti2O3, 6-8 parts of V2O3, 12-15 parts of WO3, 2-4 parts of sodium tungstate, and 19-21 parts of cerium sesquioxide. Through the adoption of the technology, the goals of heating cost reduction, and safe and low-temperature operation of a denitration system at relatively low temperature are achieved.