关键词: 智能制造, 关键技术创新, 溢出效应

Abstract: Building independent and controllable key technology systems is crucial for China to achieve its goal of highquality development Factors such as unclear R&D routes，low success rates，and insufficient market incentives form the main barriers to key technological innovation
The pilot programs for intelligent manufacturing are a policy strategy designed to promote the integration of nextgeneration information and communication technologies with advanced manufacturing technologies Although these pilot programs involve only a few enterprises，their core goal is to use these enterprises as role models，providing advanced，replicable，and scalable manufacturing standards for other regional enterprises，while leveraging platform effects to strengthen technological and production links between companies 
This paper primarily uses data from listed companies between 2010 and 2019，treating intelligent manufacturing pilot programs as a quasinatural experiment，to investigate whether and how the policy promotes key technological innovation among nonpilot enterprises in the same region The benchmark regression results show that the pilot policy can promote key technological innovation in nonpilot enterprises within the same city This result is attributed to knowledge spillover effects and market exploration effects The heterogeneity analysis reveals that the policy spillover effect on key technological innovation is more pronounced in enterprises with lower financing constraints，higher market concentration，and more R&D subsidies In contrast，the effects are not significant for nonkey technological innovation
Compared to the recent literature，this paper makes three main contributions：
First，despite the importance of key technological innovation，the empirical research in this area remains relatively scarce Our study provides detailed empirical evidence，contributing to the literature on this critical issue
Second，previous studies have mostly focused on the impact of intelligent manufacturing pilot policies on participating enterprises However，we explore the spillover effects of the policy on nonparticipating enterprises in the same region，uncovering important policy impacts that may have been underestimated or overlooked in the earlier research
Finally，we discuss the mechanisms of action from the perspectives of knowledge spillover and market exploration Our study provides a reference for further building key core technology systems through collaboration and mutual assistance among enterprises in the future

Key words: intelligent manufacturing, key technology innovation, spillover effect