The objective of this study was to examine the relationships among environmental strategies, environmental management, and corporate governance in public-listed manufacturing companies in Taiwan. With corporate social responsibility (CSR) reports in 2015 and 2016 as our samples, we developed an environmental management evaluation scale and employed content analysis to assess the CSR reports. Corporate governance was assessed by the evaluations from the Corporate Governance Center of the Taiwan Stock Exchange. This study used a two-stage estimation approach to examine the connection between the environmental strategies and environmental management of firms. The results indicate a positive association between environmental strategies and environmental management. No direct effect existed between corporate governance and environmental strategies; however, there is an interaction between corporate governance and environmental management with respect to their effect on environmental strategies, and corporate governance impacts environmental strategies via environmental management. The results of this study complement for the gap in relevant literature and offer firms reference for strategies and management in environmental protection.