The utility model discloses a fetal heart rate remote monitoring system based on a mobile network. The fetal heart rate remote monitoring system comprises a heart sound sensor used for detecting heart sound signals of a fetus. The heart sound sensor is connected with a microprocessor used for processing the detected heart sound signals. The microprocessor is also connected with a display unit and a mobile data communication unit, wherein the display unit is used for displaying a processing result and a feedback opinion, and the mobile data communication unit is used for network data transmission between the unit and a computer work station in a hospital. The fetal heart rate remote monitoring system meets a speed requirement during inspection, and also has the advantages of being low in cost, small in size, and convenient to carry. Through the system which belongs to a fetal heart sound household monitoring system, a pregnant woman, can when staying at home or going out, complete the fetal heart detection that is usually conducted in a hospital, and the pregnant woman can be monitored in real time when feeling good or feeling unwell. Moreover, the system enables the pregnant woman to know health conditions of the fetus anytime, and helps to provide a reliable means to ensure safety of pregnant women especially high-risk pregnant women.