Amidst the unprecedented changes unseen in a century, the Global South, as a force for change in the international system, is promoting the transformation of the international order towards a fair and reasonable direction through collective action and measures. This article utilizes the construction of a community of shared future between China and Latin America as the starting point and explores how the Global South countries can enhance their international voice by deepening South-South cooperation. The study points out that China's modernization has broken the path dependence of "modernization = Westernization" and provided an important example for the Global South countries to explore independent development paths. Guided by the Belt and Road Initiative, cultural exchanges and multilateral governance coordination, China-Latin America cooperation has formed an comprehensive cooperation pattern in the fields of economy, trade, science and technology, culture, etc., significantly enhancing the momentum of regional development. In order to further enhance the international influence of the Global South, this article proposes strengthening think tank dialogue to build an independent discourse system, deepening media cooperation to shape a common narrative, and consolidating the public opinion basis for cooperation through cultural exchanges. The research shows that the practice of the China-Latin America community of shared future not only provides a regional sample for the modernization of the Global South, but also adds up new impetus into the building of a community with a shared future for mankind by enhancing the dominant role of developing countries in global governance.