In order to study the impact of iron ore sintering process on the environment, taking the sintering plant of an iron and steel enterprise in Guizhou as the research object, the attributes and characteristics of resources and environment in the sintering production process are synthesized, and the IMPACT World + impact assessment method is used to select 10 impact categories for life cycle analysis and environmental impact assessment. The life cycle inventory of sintering is constructed in a functional unit of 1 year stable operation of the system, and LCA analysis is conducted according to the inventory results to identify its environmental emission reduction potential. The results show that energy consumption, human toxicity and global warming has the biggest environmental impacts of iron ore sintering production, with three potential values of 2.22×10^-10, 9.89×10^-11 and 8.82×10^-11, respectively, the potential values of human health, ecosystem health and energy consumption in the endpoint evaluation are 1.97×10^-4 DALY, 0.205 PDF·m²·a and 2.01 GJ.