The development of innovative intelligent technologies in cutting-edge fields such as aerospace, autonomous driving, unmanned aerial vehicles, robotics, artificial perception, and advanced medical applications has imposed significant demands on the high performance of ferroic smart materials. However, conventional ferroic smart materials based on Landau theory of phase transition exhibit performance limitations rooted in their fundamental physics, rendering further breakthroughs challenging. In recent years, the discovery and development of strain glass have provided new opportunities for overcoming these constraints of ferroic smart materials and achieving revolutionary performance enhancements. This review presented recent research progress in strain glass ferroic smart materials and provided forward-looking perspectives and recommendations for the future development of this novel ferroic smart material. It offered insights to maintain China’s leading position in fundamental research on ferroic smart materials and propel leapfrogging development in industrial applications.