During the sintering process of iron ore powder, the sintering process parameters have a great impact on the combustion behavior of quasi-granules as well as CO and NO emissions during the combustion process. In order to better study the combustion behavior of fuel combustion process in the low-temperature zone and the emission characteristics of CO and NO, and provide certain theoretical guidance for the reduction of emissions of polluted gases in the actual sintering process, the outsourcing (C) quasi-granules with nuclear particles and adhesion ratio of 71% are selected, the combustion reactors and gas analyzers are used to study the impact rule of sintering atmosphere, sintering temperature on the combustion behavior of fuel, CO and NO emission rules and emissions during the sintering process. The results show that with the increase of temperature and O₂? volume fraction, the peak mass concentration of CO shows a downward trend, and the peak mass concentration of NO shows an upward trend. In contrast, as the CO₂? volume fraction increases, the peak mass concentration of CO increases, while the peak mass concentration of NO decreases. The O₂? volume fraction increases from 10% to 21% , the total CO emissions decrease by 66.7% , and the total NO emissions increase by 64% . The CO₂? volume fraction increases from 5% to 15% , the total CO emissions increase by 99.6% , and the total NO emissions decrease by 53.7% . The temperature increases from 600 °C to 1050 °C , the total CO emissions decrease by 65.4% , and the total NO emissions increase by 90.4% . Under the conditions of optimal process parameters: temperature is 900 °C , O₂? volume fraction is 16% , and CO₂? volume fraction is 10% , the CO and NO emissions during quasi-granules combustion have been significantly improved.