The research progress on the application of new functional fiber materials in the field of sports bras is systematically summarized, with a focus on the innovative achievements in five functional categories: antibacterial, health care, cooling sensation, skin care, and intelligent color-changing. The research indicates that by organically integrating high-performance fiber materials with the appearance design, both the wearing comfort and health protection performance of sports bras can be significantly enhanced. Finally, the trend of sports bras in terms of comfort, intelligence and sustainability is further looked forward to.