Abstract:The value co-creation among coopetitive enterprises and digital intelligent service providers in the digital intelligent innovation ecosystem exhibits high complexity due to multiple contradictory attributes. Exploring the value co-creation game mechanism among the three parties is conducive to promoting the healthy and sustainable development of the digital intelligent innovation ecosystem. Based on the paradox theory, four paradox mechanisms for value co-creation between coopetitive enterprises and digital intelligent service providers in the digital intelligent innovation ecosystem are proposed. In the model construction, coopetitive enterprise A (the leader) with resource and capability advantages and coopetitive enterprise B in the follower position are distinguished. The digital intelligent service provider is introduced to construct a three-party evolutionary game model. Using MATLAB 2023 numerical simulation, multi-dimensional dynamic simulation data is utilized to deeply reveal the intrinsic laws of value co-creation among the three parties coopetitive enterprises, digital intelligent service providers, and the ecosystem. The research results show that high data openness and resource complementarity can significantly enhance the probability of cooperation, while moderate default penalties and government subsidies can effectively inhibit opportunistic behavior. The three parties ultimately tend towards the "full cooperation" equilibrium, but differences in initial conditions may lead to a suboptimal state of "competition - competition - cooperation". This study further enriches the theoretical research on the value co-creation mechanism in the digital intelligent innovation ecosystem and also provides a theoretical reference for the managers of the digital intelligent innovation ecosystem to better promote value co-creation among innovation entities.