Public art plays a vital role in urban development, which can improve the quality and charm of the city and promote its prosperity and development. Augmented reality and interactive devices are commonly used in the development of urban public art. Interactive device art is an art form that requires the audience's personal participation and interaction. It combines technology and art to bring immersive sensory experience and emotional resonance to the audience. Starting from related concepts, this study explores the application of public art in augmented reality and interactive devices, providing theoretical basis and reference for related development and research.