The emission control and reduction of CO2 and other greenhouse gases has become an important topic concerning international political and economic relationships. Meanwhile, the emission of Embodied Carbon during the process of trading is the central point. With regard to calculation of embodied carbon and the dissolution of its propelling factors, internationally, its research object and research methods are continuingly enlarged and improved. In China, the related researches are few and mainly centralized after 2006, furthermore, there are few articles which use input-output theory to quantitatively calculate embodied carbon and which mainly use index decomposition analysis (IDA) to make factor dissolution. These articles focus on energy consumption of total economy and CO2 emission and there are few articles on taking embodied carbon emission as research object. Chinese scholars should enlarge research object, innovate research methods, use correct and reasonable methods to test real CO2 emission quantity and provide the basis and guideline for mitigating carbon emission pressure from the perspective of foreign trade.