Abstract: In the context of dual circulation and high-quality development, the development of China's integrated circuit industry has strategic significance. Innovation cooperation is an important way for the development of China's integrated circuit industry, a means for enterprises to obtain complementary resources, and a tool to reduce the risk of R&D. Exploring organizational cooperation mechanism can help enterprises maintain stable partnership, reduce cooperation cost and improve cooperation efficiency. Based on the resource dependence theory and social capital theory, this paper constructs an analysis model of innovation cooperation mechanism from the perspective of resources, and empirically studies the formation mechanism of organizational innovation cooperation with the help of the Stochastic Actor-oriented Model (Siena). The results show that: ①Although the number of innovation cooperation patents in China's IC industry organizations has increased first and then decreased, the types of innovation cooperation technologies have shown a fluctuating upward trend, and the network structure of organizational cooperation has evolved from "one branch" to "everywhere". ②From the perspective of social resources, organizations tend to cooperate with partners with high average social value; Partners' partners are more likely to become their new partners; Social reputation cannot effectively promote the establishment of cooperative relationship. ③From the perspective of knowledge resources, organizations with deep knowledge in professional fields are more inclined to cooperate; The organizations with wide range of expertise and high technical specialization are not inclined to cooperate; The organizations with complementary technologies tend to cooperate, but this phenomenon is not significant.