China is a country whose manufacturing sectors have the most complete categories. The main problem it is facing is that key industries, key technologies and key components are in the hands of multinational companies in developed countries. In the process of China's manufacturing industry participating in the division of global value chain, due to the low degree of self-dependence of core technologies and parts, there are two important characteristics: first, China's manufacturing industry mainly participates in globalization with the mode of processing trade, and in the vertical division of labor, it mainly participates in the process of assembly of intra-product trade. Second, in representative industries such as electronic information, China mainly participates in global value chains with foreign-funded enterprises.The existing theories and practices show that the implementation of core technology catching-up strategy in the process of modernization by the latter-industrial countries and regions such as Japan, South Korea and Taiwan mainly depends on the "opportunity window", which is manifested in three aspects: technology window；demand window；system window. On the basis of drawing lessons from international experience, our breakthroughs in core technologies should give full play to the institutional advantages of the new national system, which can concentrate efforts for big and key projects and the advantages of the ultra-large-scale market. We can start from the following perspective: utilizing the "technology window" of industrial technological innovation discontinuity, utilizing the huge domestic market to create a "demand window" for the development of key industries, utilizing "system window" to focus on the core links of key industries.
