The deep integration of smart city construction and artificial intelligence technology provides technical support and cultural context for the innovative development of AI art. Through interdisciplinary research methods, this paper constructs a three-dimensional analysis framework of “technology empowerment-scene reconstruction-ecological collaboration” to systematically explore the integration mechanism and practical path of AI art in smart cities. The study found that AI art has reshaped the spatial narrative of urban public art through data-driven creation, algorithmic style transfer, and real-time interactive design. It demonstrates unique value in the revitalization of cultural heritage, citizen participatory creation, and industrial digital transformation. However, issues such as technical ethical controversies, data sovereignty games, and aesthetic paradigm shifts need to be urgently addressed. This study proposes a collaborative development path of “policy guidance-algorithm transparency-cultural embedding” to provide a theoretical reference for enhancing the humanistic value of smart cities.