China’s steel industry emits about 15% of CO₂ annually,with the sintering process accounting for 11. 5% of total emissions. To investigate the key sources of CO₂ emissions from the sintering process,the LCA method is used to systematically calculate the carbon emissions throughout the entire process from raw material extraction to sinter production. On this basis,combined with the Long-range Energy Alternatives Planning System (LEAP) model,one baseline scenario,three enhanced emissions scenarios,and one comprehensive scenario are constructed to simulate and forecast carbon emission trends from 2025 to 2050 under different emissions strategies. The results show that compared to the baseline scenario,the carbon emissions potential of the other four scenarios is 0. 293,0. 222,0. 06,and 0. 529 respectively, and the carbon emissions of the capacity optimization scenario are significantly lower than those of the technology enhancement scenario. Among various sintering energy-saving and emissions technologies,the cold-consolidated pelletizing technology for returning ore has the lowest carbon emissions.