Since the outbreak of financial crisis in 2008, there has been a trend of de-globalization. Intermediate trade is the indicator of global trade. Based on the OECD-ICIO in 1995~2014, we identify the key nodes of global intermediate trade through PageRank algorithm, and analyze the evolution of global trade through social network analysis. Our results show that, while developing economies have been the important promoters of globalization, developed economies still dominate the network in high-tech fields. In future, developing economies need to build their own advantages in order to take more initiative.