The potential of traditional textile processes to address environmental and sociocultural issues is being re-examined in the current era of sustainable fashion. With a focus on upcycling, zero-waste design techniques, and craft ecology, this study examines appliqué work as an important craft practice within sustainable fashion. The creative reuse of textile waste, surplus textiles, and discarded clothing is made possible by appliqué, which is typically employed for decorative and practical purposes. This prolongs material life cycles and lessens the impact on landfills. Using patch-based construction, surface ornamentation, and modular design methods, the study looks at how designers and craftspeople incorporate appliqué techniques to reduce fabric waste. Additionally, the study places appliqué within the framework of craft ecology, emphasising the interconnectedness of ethical labour practices, cultural legacy, local craftsmanship, and ecologically conscious production processes. Appliqué becomes an ecological and aesthetic activity by connecting historic knowledge with modern sustainable design concepts. The study emphasises how important appliqué labour is for maintaining artisan livelihoods, encouraging responsible consumerism in the global fashion sector, and developing circular fashion models.