In the continuous process of urban development, brownfield landscapes have emerged as a crucial method of remediation. Beyond ecological restoration, they are increasingly recognized as essential components of landscape composition. Within urban renewal frameworks, brownfield landscapes facilitate the transformation and revitalization of derelict industrial land through innovative planning, design, and ecological restoration. This strategy reestablishes ecological balance, enhances land-use value, and generates economic growth and social vitality through functional integration and spatial reconfiguration. Focusing on the landscape dimension, this study takes Luoyang City's brownfield renewal as a case study to explore strategies for integrating brownfield landscapes with industrial cultural resources in contemporary urban renewal. It illustrates the area's typicality as a representative example of brownfield regeneration. The study identifies a three-level integration mechanism in regeneration: spatially, combining site layering and functional insertion; temporally, constructing narrative continuity between industrial civilization and the city's cultural context; and socially, establishing shared recognition of heritage landscape value through multi-stakeholder participation. The concept of dynamic suturing is also proposed, emphasizing that brownfield renewal must balance physical transformation with preservation of intangible collective memory. The findings provide a new-old symbiosis renewal paradigm for similar cities, offering practical insights into industrial city transformation under current urban development demands and strategies for high-quality growth.