20世纪90年代以来,国际上区域集团化迅速发展。然而,东亚国家区域一体化步伐相对较慢,目前仅形成了中国-东盟自由贸易区,包括中日韩和东盟在内的东亚自由贸易区尚未建立。本文通过比较分析各个国家的贸易竞争指数、出口商品的显示性比较优势指数以及进出口相似度指数来探究东亚国家在对外经济贸易中竞争关系与合作关系,并且为东亚地区进一步经济贸易合作提供依据。 Since the 90s of the 20th century, the international regional group has developed rapidly. However, the pace of regional integration in East Asian countries is relatively slow. At present, only the China-ASEAN Free Trade Area has formed. The East Asia Free Trade Area including China, Japan, South Korea and ASEAN has yet to be established. This article explores the competition and cooperation between East Asian countries in foreign economic relations and trade by comparative analysis of trade competition index, display comparative advantage index of export commodities and import and export similarity index, and provides the basis for further economic and trade cooperation in East Asia. .