The present invention relates to a pregnant womans bosom provided with a sensing means for measuring fetal state information and capable of resetting the position of the sensing means by tracking the heart position of the fetus moving through the smartphone, An inner cover which is in close contact with the inner cover An outer cover detachably attached to the inner cover A sensor pad which is fixed to the inner cover but can reset the fixing position and has an inner skin and an outer skin A probe installed on an inner surface of the sensor pad for transmitting a heart signal of a fetus to a digital signal and wirelessly transmitting the digital signal A plurality of sensing sensors disposed on an inner surface of the sensor pad in a state where the plurality of probes are distributed around the probe and measuring a fetal state signal A signal processing circuit provided in the sensor pad for processing the fetal state signals and converting the fetal state signals into a digital signal and a wireless signal transmission module for transmitting a digital signal of the fetal state signals together with position information of the detection sensors wirelessly, And a control unit for receiving the digital signal of the heart sound, the position information of the sensors, and the digital signal of the fetal state signals, and producing, displaying and transmitting the fetal state information through the digital signal. The app receives a digital signal of the heart sound, the position information of the sensing sensors and the fetal state signals through the Bluetooth function of the smartphone, displays the fetal state information on the screen of the smart phone, The status information of the fetus displayed on the screen is provided as an image of the probe and the sensor, and information on the location of the heart and the heart of the fetus is provided by touching each image .본 발명은 태아 상태정보를 측정할 수 있는 감지수단이 복대에 구비되고, 스마트폰을 통해 움직이는 태아의 심장 위치를 추적하여 상기 감지수단의 위치를 재설정
