Objective:To analyze the risk factors for FGR in preeclampsia.Methods:Retrospective analysis of clinical data of 125 patients with preeclampsia in the Second Affiliated Hospital of Henan University of Science and Technology from June 2021 to December 2022.45 patients with concomitant FGR were included in the case group,and 80 patients without concomitant FGR were included in the control group.Risk factors for FGR were summarized.Results:Umbilical artery S/D≥3,placental volume≤600 m3,placental weight≤500 g,placental coefficient ≥ 2.0,FFA≥600 mmol/L,IGF-1 ≤ 100 μg/L,AT1-AA≥55 pg/ml,LP≥15 ng/ml,VEGF≤40 pg/ml and ET-1≥60 ng/L were risk factors for FGR(OR=5.281,5.339,5.772,6.033,6.255,6.441,5.258,6.414.5.779,5.161).Conclusion:Preeclampsia patients with low age,low BMI combined with intrauterine infections and abnormal fetal umbilical artery blood flow parameters are prone to FGR.