The effective coordination of policy measures has key significance to promote the growth of China′s IC industry. China′s government has invested in the IC industry to carry out large-scale policy support. China′s IC industry has achieved greatly in chip design, packaging and testing fields. However, there are also lots of technology shortcomings that make China highly dependent on other countries and regions in high-end materials, high-precision integrated lithography machine, chip design EDA tools and other core technologies and products. Therefore, it is difficult to fully explain the paradox of "policy support for the IC industry" and "weakness of technical or industrial competitiveness" in China from the perspective of policy tool or policy strength analysis. It is urgent to introduce the perspective of policy coordination, to systematically evaluate the synergetic evolution of Chinese IC industrial policy, and its internal evolutionary mechanisms and impact on industry development. According to the theoretical perspective of mission-oriented policy, this paper studied the influence of policy synergy on the development of Chinese IC industry. 
    Based on the IC related policies at the national level in China during 2000-2020, this paper constructed the quantitative criteria of policy intensity and the scoring criteria of policy tools through the analysis of policy text and the expert review method, and measure the intensity of various policies in China′s IC industry. A model of policy tool synergy degree was built to systematically analyze the evolution of synergy degree among major policy measures and its impact on the development of IC industry. The results showed that since 2000, the key policy that encouraging the development of IC industry issued by the State Council was characterized by mission-oriented, which had a significant effect on the overall improvement of the IC policy. Coordination of financial support and guidance measures and coordination of financial support and R&D innovation had a significant positive impact on the development of IC industry. Guidance measures such as encouraging high-tech IC enterprises to list on the Science and Technology Innovation Board further strengthen the effectiveness of financial support policies. 
    However, coordination of tax incentives and intellectual property measures has not effectively promoted the development of China′s IC industry. In the current development stage, it is urgent to encourage enterprises to carry out high-quality IC patent layout, minimize the crowding out incentive effect of preferential-tax-policy in enterprise′s intellectual property layout by production capacity expansion, and promote the synergistic interaction between preferential-tax-policy and intellectual property policies. The main policy measures and guidance measures in China′s IC industry maintain a high degree of synergy, while the degree of synergy with implementation measures is low. 
     This paper also provides some policy implications. It is suggested to strengthen the continuously mission-oriented policy support to IC industry. It is highly important to strengthen the effective coordination between financial support and other measures, and also optimize the coordination mechanism between tax incentives and intellectual property measures. 〖JP2〗At the same time, it is necessary to further strengthen the precise support of financial support and tax incentives, improve the organization and supervision mechanism of government guidance fund, and prevent the negative impact of disorderly expansion of production capacity.