Abstract: To comprehensively prevent and resolve the potential risk of a "bottleneck" in the context of reverse globalization, sorting out China's potential autonomous and controllable key products systematically is an important issue. The paper constructs a product space network model according to the data of 243 countries' export products from 1995 to 2019 and measures the product coreness based on the revealed comparative advantage of products to identify global core products. On this basis, the close degree of grey incidence model is used to quantitatively analyze the close correlation degree of the overall revealed comparative advantage distribution of countries in the global product system. And through the analysis of the marginal contribution of revealed comparative advantage, the study also identifies China's potential autonomous and controllable key products. Among the 124 global core products in the top 10% of the coreness in 2019, the products whose revealed comparative advantage changes make a greater contribution to the distribution of China's overall revealed comparative advantage are potential autonomous and controllable key products in China. Among the top 31 kinds of core products with the top 25% contribution rate, China's potential autonomous and controllable key products are mainly distributed in the fields of mechanical and electrical equipment, vehicles, aircraft and ships, optical and medical precision instruments with high-tech characteristics, as well as in the field of chemical products with capital-intensive characteristics.  

Key words: Product Space Network, Potential Autnomous and Controllable Key Products, The Close Degree of Grey Incidence, Marginal Analysis