This book explores the cultural, spatial, and social resilience of one of Macao’s oldest commercial districts: Rua dos Mercadores (Camp Street) through a unique integration of oral history and grounded theory methodology. Based on in-depth fieldwork and 61 semi-structured interviews with shop owners, residents, and new immigrants, this book presents how a traditional urban street negotiates between continuity and transformation in the context of globalization, tourism, and urban redevelopment. This book adopts a qualitative, bottom-up approach to reconstruct the living memory of the street. Rather than treating oral history merely as a documentary record, it systematically analyzes narratives through the procedures of open, axial, and selective coding. From over one thousand initial codes, the author derives a conceptual framework of local commercial cultural resilience, illuminating how individual experiences, spatial cognition, and collective memory converge to sustain the identity of Camp Street.