Abstract:Aiming at the insufficient synergistic reform of supply side and demand side, which is the main source of the potential energy of collaborative innovation between industries, universities and research institutes and its spillover effect of Liaoning high-end equipment manufacturing industry that has not yet been completely formed, and reflecting on the key problems restricting the high-quality development of Liaoning high-end equipment manufacturing industry, we collect and select 222 public policies related to collaborative innovation between industries, universities and research institutes in the process of Liaoning high-end equipment manufacturing industry development. We collect and select 222 public policies related to industry-academia-research collaborative innovation in the development process of high-end equipment manufacturing industry in Liaoning Province, use the theory of policy tools to construct the analytical framework of "policy tools-policy life cycle-policy force", and explore the structure of the use of policies, their distribution status and the strength of their effects. The results show that there are structural imbalances and shortcomings in the use of policy tools in different dimensions, and limitations in the continuous use of policy lifetime; The distribution of policy texts over the life of the policy is not sequential; and the mandatory impact and subjective association of policy forces are insufficient. Aiming at the problems of the public policy of collaborative innovation among industries, universities and research institutes in Liaoning Province's high-end equipment manufacturing industry, we put forward countermeasures and suggestions for further adjusting the structure of the use of policy tools, optimizing the distribution of the policy life cycle, promoting the integration of policy forces, and breaking through the boundaries of the use of policy tools.