Abstract: This article firstly calculates the exports of added value of emerging economies, which is based on the global input and output data from the database (WIOD). Through calculation and analysis, we find that, compared with the developed countries, the export competitiveness of emerging economies in recent years is strong, and trade power increases significantly. On this basis, this paper uses the new revealed comparative advantage index, to further account the industrial added value of trade of emerging economies. Through the analysis and comparation with that of the developed countries, we find emerging economies are more focused on the comparative advantage of low technology-intensive industry, so they need to strengthen the technological learning and innovation. Through the longitudinal analysis from 2000 to 2014, we find the new RCA index of emerging economies has advantages of industry and the advantages are constantly rising and enhancing constantly.