Abstract: Cooperative innovation between upstream and downstream enterprises in the industrial chain is the basic path to solve the "Neck-jamming" of key core technologies, and it is also the inevitable choice for China's industries to move towards the high-end of the global industrial chain. To clarify the cooperative innovation relationship between upstream and downstream enterprises in the industrial chain, this paper defines and analyzes two modes of cooperative innovation with the industrial chain as the main line: link-innovation and coopetition-innovation. Based on this, this paper constructs the initial dimension and scale of link-innovation and coopetition-innovation by using the Critical Incident Method. Finally, the final dimension composition and measurement scale are determined through the quantitative analysis of the questionnaire. The results show that link-innovation includes five dimensions: raw material technology cooperation innovation, process technology cooperation innovation, component technology cooperation innovation, production and manufacturing equipment cooperation innovation and industrial software cooperation innovation. Coopetition-innovation includes four dimensions: cooperative creating industrial technical standards, mutual authorizing intellectual property, communicating and learning innovative experience, and cooperative creating industrial Internet platform.