Improving the resilience and security of China's integrated circuit (IC) industry chain is the basis for ensuring China's economic security and national security in the era of digital intelligence. On the basis of summarizing the new development trend of the global IC industry chain, it was found that the United States exercises "long-arm jurisdiction" over the global IC industry and strengthens its own manufacturing capabilities under the name of security, leading the IC industry into an unprecedented period of turmoil. Coupled with the U. S. "decoupling" and isolate China from its allies. China's IC industry faces unprecedented risks, and the new industrial cycle's downturn phase further intensifies the competitive risks. However, China's acceleration in technological and product breakthroughs in the IC industry has effectively mitigated the impact of external forces, and the resilience and security of China's IC industry have been effectively alleviated by enforcing technological independence and breakthroughs in cutting-edge technologies. In the future, enhancing the resilience and security of China's IC industry chain and building a national competitive advantage not only requires the active capability of the nation to strengthen policy supply, but also the advanced chips breakthroughs and mature chips capacity expansion, long-term strategic deployment, cultivation of "epoch-making products" and the construction of industrial ecology, safe operation under extreme conditions, and construction of the industrial ecosystem are necessary to drive the high-level security and high-quality development of the IC industry.