Fetal magnetic resonance imaging （fetal MRI） offers several distinct advantages，including the absence of ionizing radiation and high soft-tissue contrast resolution，which collectively enable precise anatomical delineation and functional assessment during prenatal evaluation of congenital anomalies. As an advanced prenatal imaging modality，fetal MRI has become an integral component of standardized diagnostic and therapeutic frameworks in prenatal diagnosis and fetal medicine. Its primary clinical value lies in its ability to “assist in diagnosis” decision by providing comprehensive imaging evidence in complex cases，serving as a critical basis for initiating multidisciplinary team （MDT） consultations in pediatrics，and facilitating the formulation of individualized perinatal management strategies. All of these provid significant support for the life-cycle management of birth defects.