Abstract:Hierarchical regression was conducted based on the survey data of 237 manufacturing companies in China, the relationship between green supplier integration, external knowledge adoption and green innovation and the moderating effect of compatibility are discussed. The empirical research results show that the integration of green suppliers contributes to the adoption of external knowledge, which is further conducive to the company’s green product innovation and green process innovation. External knowledge plays mediating roles in the relationship between green supplier integration and green product innovation and green process innovation. In addition, knowledge compatibility has a negative moderating effect on the relationship between green supplier integration and external knowledge adoption, while strategic compatibility has a positive moderating effect on the relationship between green supplier integration and external knowledge adoption.