The Chinese Women’s Development Foundation (CWDF) is a leading social organization in the field of Chinese women’s public welfare. It strengthens the “South-South Cooperation” civil power in global gender equality governance. Based on the history and the practice of the organization, this study systematically explores how it participates in global women’s development as well as its achievements, effects, mechanisms, and limitations. This study finds that CWDF shows its unique value through project output, experience sharing, and multilateral cooperation. It not only makes China’s gender equality experience more international, but also fills the gap in civil attendance in global gender governance. Though it provides precious experience for women’s development in developing countries, it faces problems like uneven regional coverage, a lack of multiple funding mechanisms, and insufficient localization. The conclusion of this study can provide practical reference for China’s social organizations to participate in global governance. In the meantime, it also helps enrich the perspective of the multi-subject synergy theory of global gender governance.