Packaging design plays a pivotal role in shaping consumer behaviour and perceptions, particularly in the context of increasing environmental awareness and the growing emphasis on sustainable practices. Beyond its primary function of product protection and transportation, packaging serves as a crucial medium for brand communication, conveying a company’s values and identity. This study examines children’s perceptions of sustainable packaging through a comprehensive literature review conducted using Google Scholar. Given the rising concerns over environmental sustainability and the impact of packaging waste, sustainable packaging has become a focal point in contemporary consumer markets. As a key interface between consumers and brands, packaging influences purchasing decisions, shapes consumer attitudes, and fosters brand loyalty. This review highlights the significance of both functional and emotional design elements, such as colour, shape, and imagery, in enhancing consumer engagement. Particular attention is given to how these design aspects affect children’s responses to sustainable packaging, underscoring its dual impact on environmental sustainability and brand perception.