Since the handover in 1999, Beijing has strategically used Macau’s Portuguese heritage and thriving local economy to develop closer relations with Lusophone countries. Among these nations, Brazil stands out as an emerging power and as China’s most important trading partner in Latin America. However, it is crucial to recognize that Macau is not merely a passive entity in this dynamic. As a Special Administrative Region (SAR), Macau possesses a distinct “actorness”, empowered by its Basic Law to engage autonomously in relevant external affairs. This study aims to dissect and understand Macau’s role in the evolving China-Brazil relations over twenty-five years. To achieve this, I will employ qualitative research methods, primarily online archival excavation, and document analysis, focusing on official documents, local media articles, and academic literature. Applying soft power and paradiplomacy frameworks, I will explore how China has utilized Macau as an instrument of attraction in its dealings with Brazil. Furthermore, I will examine Macau’s endeavors to establish itself as a critical paradiplomatic player in these interactions. Lastly, I will delve into Brazil’s reactions to China and Macau’s efforts to strengthen their ties with the country and how these responses have shaped their triangular relations.