Objective To assess the value of Hemodynamics of uterine artery (UtA) and umbilical artery(UmA) in monitoring Late Onset fetal growth restriction (FGR) is related to adverse pregnancy outcome. Methods 169 pregnant women with Late Onset FGR and 58 normal pregnant women were included in the study. The pulsatility index (PI) in both UtA and UmA were assessed by color Doppler ultrasonography, The hemodynamics changes UtA and UmA were compared with the perinatal outcomes. Results caesarean delivery , premature delivery, neonatal asphyxia, admission to NICU,abnormal uterine artery and umbilical artery Doppler incidenceSrate in the Late Onset FGR group were higher than those in control group (P <0.05),