Abstract:The carbon emission of a lead smelting enterprise accounts for the largest proportion is raw material use of energy, followed by fuel combustion emission. Carbon dioxide emission and carbon dioxide emission intensity of the enterprise during 2011-2013 and 2018-2020 were compared and analyzed. Adopting change of energy types and use of clean energy can significantly reduce emission intensity of carbon dioxide per ton by nearly 60% and 1.27% respectively. The purpose of green and low carbon, energy saving, carbon reduction and pollution reduction of smelting is realized.