This article provides a highly structured and insightful analysis of the integration of artificial intelligence (AI) and dance art. It first discusses the impact of AI technology on the reshaping of creative processes and the innovation of artistic expression paradigms in the field of children’s dance. Then, from the perspective of posthumanism and body aesthetics theory, it naturally and appropriately introduces the “body-technology” aesthetic imagery constructed by AI, creating an “E-utopia” creative environment and adopting a “posthuman narrative” perspective to unfold profound artistic philosophical reflections. What is even more noteworthy is that AI reconstructs the traditional teacher-centered process into a “generation-interaction” closed loop centered on children’s experience, from three dimensions: creative generation, teaching adaptation, and stage interaction. This has truly given birth to a new paradigm of artistic expression. However, it is undeniable that this process also brings various issues, such as technological ethics and child protection, the balance between artistic subjectivity and educational nature, and the digital divide caused by technological popularization. Therefore, the future direction is very clear: to promote the development of lightweight tools, build an “AI+aesthetic education” integrated ecosystem, improve industry norms, and provide policy guidance, so as to enable the healthy development of this field and benefit the public. In excellent correspondence with this, this article clearly proposes that AI should serve as a “co-creator” and “aesthetic expander” in children’s dance, to construct a new paradigm of “technology-art-education” trinity centered on children’s development.