按照SITC两位数分类标准选取61类的出口产品，基于显性对称比较优势指数（RSCA）分析安徽和江苏出口比较优势动态。研究发现，2000—2019年，两省大多数出口产品没有比较优势，且安徽比较优势分布较江苏更加分散。二十年来两省出口比较优势呈现出显著变化，是各年份较小变化的累积结果。两省约有30%的最具活力的产品保持生存状态。为此，两省通过统筹推动出口稳增长调结构，紧抓主要出口产品，落实好长三角市场融合，以提升出口比较优势与生存能力。

According to the SITC double-digit classification standard, 61 categories of export products are selected, and the export comparative advantage dynamics of Anhui and Jiangsu are analyzed based on the revealed symmetric comparative advantage index(RSCA). From 2000 to 2019, most of the export products of the two provinces have no comparative advantage, and the distribution of comparative advantage of Anhui is more scattered than that of Jiangsu. In the past 20 years, the export comparative advantage of the two provinces has changed significantly, which is the result of cumulative small changes in each year. About 30% of the most dynamic products in the two provinces remain in a state of survival. Therefore, the two provinces should steady export growth, adjust the structure, focus on the main export products, and implement the integration of the Yangtze River Delta market, so as to enhance the comparative advantage and survival ability of export.