Abstract：Promoting the integration of innovation chain,industrial chain,capital chain and talent chain is an important step to improve the national innovation system.In order to clearly explore the reality and internal mechanism of the“four chains”integrated development,this paper firstly reviews the status quo of single-chain development and multi-chain integration in detail based on the concept connotation,system operation structure and efficiency improvement framework of the national innovation system.Then it analyzes the relationship between the four chains under the national innovation system according to the current situation.It further reveals the“four chains”integrated development mechanism that promotes the efficiency improvement of the national innovation system.It is found that the integration of“four chains”improves the process performance and result performance of the national innovation system by optimizing the system structure and layout.The relationship between the industrial chain and the innovation chain is the structural basis of the“four chains”cross-action relationship network.The relationship between the capital chain and the talent chain is incentive and feedback,and the joint force serves the deep integration of the innovation chain and the industrial chain.The three integration paths starting from laying out the innovation chain on the industrial chain,laying out the industrial chain on the innovation chain,and platform mode integration and development are respectively from the perspective of demand side,supply side and supply and demand matching to achieve“four chains”integration,and thus improve the overall efficiency of the national innovation system.Based on the above research,this paper puts forward the theoretical and practical enlightenment to promote the integrated development of“four chains”and improve the quality and efficiency of the national innovation system.In the context of national innovation system and global innovation network,this paper designs a research prospect framework for the integrated development of“four chains”.It not only deepens the theoretical research of national innovation system and global innovation network,but also provides specific reference for the deep integration practice of“four chains”.
2024, 
