Abstract:Based on the theory of system dynamics, this research focuses on the three modes of open innovation: outside-in, inside-out and coupling, and will take the process of "knowledge acquisition-knowledge integration-business modelization" in enterprise open innovation as an observation point , Construct a system dynamics model of the driving factors of enterprise open innovation, analyze the driving factors of the enterprise open innovation process, draw the cause and effect diagram and flow diagram of enterprise open innovation under the three modes, and carry out system simulation simulation. The study found that when the company aims to maintain growth, it will give priority to the open innovation model from the outside; when the company aims to reduce costs, it will give priority to the open innovation model from the inside out ; In the case of companies that want to maintain growth and reduce costs, they will choose a coupled open innovation model; Under the outside-in open innovation strategy, companies start to improve their innovation performance from the fifth year; under the inside-out open innovation strategy, companies start to improve their innovation performance from the eighth or ninth year. The research results lay a theoretical foundation and provide new ideas for companies to find the key driving factors for open innovation.