Abstract: Intellectual disability(ID)is a neurodevelopmental disorder,characterized by intellectual and adaptive dysfunction.It has a high incidence and affects patients for lifelong,causing a huge burden on patients,their families and society.The pathogenesis of ID is unclear,thus there still haven't an effective prevention and treatment measures.Moreover,the study of pathogenesis of ID seriously limited by the diverse pathogenic factors.In recent years,the prevalent application of MRI brain network research in neuropsychiatric diseases provides a new perspective for the study of the pathogenesis of ID.This article reviews the research findings on MRI brain network in children with ID in the past ten years,and explores the possible common characteristics and application prospects of brain network changes in children with ID for such disorders,in order to provide neuroimaging evidence for the study of the pathogenesis of children with ID.