Abstract:This paper builds a model based on the relevant theories of system science, focusing on the influencing factors and emergence mechanism of the open service innovation of platform enterprises, with enterprises, demand markets, financial institutions as the main body, and uses ISM interpretative structure model to construct complex unit diagram of open service innovation platform system, and conducts emergence research based on complex systems and their characteristics. It is found that the emergence of open service innovation platform is closely related to the complexity of the platform itself. New structures, functions and features of the platform emerge through the complex non-linear relationship between the main players of the platform. Finally, according to the conclusions drawn, the management enlightenment can be drawn as follows: strengthening demand orientation, integrating production, education and research; giving priority to market regulation, supplemented by government support; expanding foreign cooperation and learning new open innovation model.