Abstract:Based on Upper Echelons Perspective and the theory of strategic management, organizational behavior and social psychology, a conceptual model of the relationship among Top Management Team climate, strategic flexibility and firm performance is proposed, and the environmental dynamism is used as a moderator to test the above questions further. By combining the data of annual reports and questionnaire survey from 224 Chinese listed manufacturing companies, the results show that strategic flexibility plays a partial mediated role between top management team climate and firm performance; environmental dynamism moderates the relationship between top management team climate and strategic flexibility, while it has no moderating effects in the relationship between strategic flexibility and firm performance. This research enriches Upper Echelons Perspective, and provides a theoretical basis for the research and application of team climate and strategic flexibility under dynamic environment.