In this keynote presentation, we delve into the transformative impact of wheeled-legged robots on last-mile delivery. Explore their unique design, efficiency, versatility, and cutting-edge technology. Discover how these robots navigate complex terrains, optimize routes, and enhance delivery efficiency. We also explore their potential to reduce carbon emissions, alleviate traffic congestion, and improve customer satisfaction. Join us to uncover the profound implications of wheeled-legged robots and envision a more sustainable future for last-mile delivery.