The conventional understanding of the cerebellum as a sole movement control center has become obsolete, given its role in various higher-order functions, including cognition, emotion, and social processing. As these functions emerge during infancy, it is logical to assume that the cerebellum's functional organization evolve in tandem or preemptively to underpin these functions. However, the longitudinal development of the cerebellum's functional architecture during the crucial early years of infant life remains largely unexplored, highlighting a significant research gap. In this study, leveraging a large cohort of both male and female full-term (FT