Abstract: In order to study the characteristics of carbon emission of tobacco production in China and promote green low-carbon system for tobacco production, the tobacco carbon footprint in southern Henan tobacco growing area was quantitatively analyzed based on the agricultural carbon footprint theory and farmers'survey data. The characteristics of carbon emissions in the tobacco production process were clarified, and the relationship between the carbon footprint of tobacco production fertilizers and the output value per unit area, and that between tobacco yield per unit area and the carbon footprint of different functional units in the southern Henan tobacco growing area were analyzed. The results showed that the carbon footprints per unit area, per unit yield, and per unit production value of the tobacco production system in southern Henan were 12 630.03 kg CO₂-eq· hm^-2, 6.62 kg CO₂-eq·kg^-1, and 0.21 kg CO₂-eq·￥^-1, respectively. Coal used for tobacco curing, electricity for tobacco curing, agricultural film, and fertilizer application were the main sources of the carbon footprint of tobacco production in southern Henan, accounting for 67.4%, 14.5%, 6.1%, and 4.0%, respectively. Based on the higher output value per unit area, the carbon footprints of fertilizer and nitrogen fertilizer were found to be too high for 28.04% of the farmers surveyed. Based on the lower carbon footprint per unit area, tobacco yield was too low for 20.56% of the farmers surveyed. Therefore, the key to developing green tobacco production in southern Henan tobacco growing area is to maintain tobacco yield and reduce carbon emissions in production, and promoting clean energy curing houses and optimizing fertilizer management will be important measures for green tobacco production in the future.