As an emerging human-computer interaction device, smart glasses are revolutionizing people's lifestyles with their powerful functions and convenient interaction methods. This paper initiated by introducing the concept and classification of smart glasses, then systematically reviewed their design processes, manufacturing techniques, and material innovation status. Through a comprehensive analysis of the global market scale and industry landscape of smart glasses, the paper explored the technical challenges and future development trends. The findings aim to offer valuable references for the technological innovation and industrial advancement of smart glasses.