In the context of green transformation and growing demand for personalisation,apparel retail space design is an important field for brand image communication and consumer experience.Current design focuses on visual aesthetics and functionality,neglecting sensory experience and environmental sustainability.In view of this,this study introduces perceptual engineering,explores the deep principles of apparel retail space design through case studies and questionnaires,provides theoretical basis and practical guidance for optimal design,expands the application of perceptual engineering in space design,and provides innovative ideas for creating a more attractive and sustainable retail environment.