Abstract: Implicit CO₂ emissions from international trade in commodities are an important reference for effective division of carbon credits and allocation of emission quotas among countries.In order to accurately calculate the implied CO₂ emissions from the international trade of iron-containing commodity in China, this paper sets the iron content coefficient of all kinds of iron goods from China customs, and calculates the carbon emission coefficient of China and foreign iron goods based on the methodology provided in “IPCC national greenhouse gas emissions inventory 2006”.The final calculation of the 2015 China’s iron-containing commodity in the international trade implied CO₂ emissions.The results show that:huge carbon emissions in the international trade of iron products in 2015 was transferred to China with a net transfer value of 4.05 million tons; net carbon emissions transfer of iron products to China are mainly concentrated in Asia, North America and Europe; The United States, Vietnam, South Korea and other countries are major countries with net transfer of carbon emissions to China, accounting for 49% of the total net emissions; the carbon responsibility for net transfer to China should be borne by the consumer countries of these iron-containing products.The calculation of carbon emissions about China’s iron-containing commodity in international trade can provide a more equitable and effective division of international carbon emissions responsibilities and provide information support for the allocation of carbon quotas among countries.