Uterine artery blood flow needs to be checked by ultrasound. Uterine artery blood flow is commonly used to determine the intrauterine condition of the fetus and to guide clinical management. Uterine arterial blood flow is usually viewed by ultrasound during the obstetric examination, which generally needs to measure the flow rate of the uterine arterial blood flow and derive the ratio of systolic and diastolic arterial blood flow, so as to determine the blood supply of the placenta, such as poor blood supply of the placenta, which can lead to fetal dysplasia, intrauterine distress, and seriously lead to intrauterine foetal death. When the blood flow in the uterine artery of the mother is abnormal, the patient should seek medical treatment in time to avoid delaying the condition and causing adverse consequences.