Abstract: With global scientific and technological innovation entering an unprecedentedly intensive period of activity, intellectual property is increasingly becoming the main battlefield of innovation competition between countries. In order to suppress China's technological innovation and economic development, the United States has launched an offensive against China's intellectual property field along the logic of "weak others" and "strong themselves”. This paper uses social network analysis to study the evolution of the focus of the US intellectual property strategy towards China in the initial, escalation, mitigation and adjustment stages of the Sino-US trade war. With the development of the trade war between China and the United States, the United States has comprehensively escalated its containment and suppression of China's intellectual property. The US intellectual property strategy towards China is increasingly characterized by diversified focus issues and network intensification. The first stage focuses on traditional intellectual property legislation, enforcement and protection; the second stage focuses on national intellectual property security; the third stage adds new concerns to drug protection and pharmaceutical innovation; and the fourth stage shows the tendency of coordination and cooperation while the United States continues to put pressure on China's intellectual property. The United States intellectual property strategy towards China can be summarized into six aspects: intellectual property legislation, intellectual property justice, intellectual property law enforcement, intellectual property supervision, intellectual property security, intellectual property and innovation. In addition to traditional intellectual property issues, China and the United States will engage in more intense intellectual property games in the field of science and technology security and innovation in the future. The US intellectual property strategy itself has many limitations, such as violating the objective laws of globalization, impeding the development of scientific and technological innovation, undermining the intellectual property interests of other countries, threatening the innovation ecosystem, restricting and suppressing the exchange of scientific and technological talents, and hindering global innovation cooperation. China's response strategy is also flawed, with a lack of forward-looking risk warning, a passive lag in response to repression, and a lack of timely and unimpeded dialogue and exchange mechanisms, leading to international misunderstandings about China's intellectual property protection. This paper takes the limitations of the US intellectual property strategy towards China and China's response as a breakthrough point. It provides policy suggestions for China's response from three aspects: top-level planning, industrial development, and key layout. At the top-level planning level, China should build a diversified intellectual property governance mechanism led by the government and coordinated by enterprises and industry associations, enhance the capacity of countermeasures and risk prediction in the field of intellectual property, and actively participate in international intellectual property governance. At the level of industrial development, China should adopt competitive, inclusive, self-strengthening and collaborative response strategies according to the actual situation of industrial development and the degree of US repression of China's intellectual property. In the areas that need to make breakthroughs, China should turn short-term actions into long-term actions, establish a monitoring body to closely follow the trend of the US intellectual property and innovation speech, build an intellectual property security discourse system in which China participates and occupies an important position, and strengthen the training of international intellectual property talents.