PURPOSE: A device for prenatal care for an unborn baby is provided, making the user's mind stable by letting the user listen to the sound with generating the brain wave-alpha wave- which makes the body stable and relax artificially. It is good for normal person as well as for a pregnant woman. CONSTITUTION: A device for prenatal care for an unborn baby is characterized by being comprised of: a device for changing the frequency of the alpha wave into the frequency that man can hear by generating the brain wave artificially(30); a device for outputting by collecting the sound generated by the movement of the unborn baby and the heart sound(40); and a device for recording and generating(50) the brain wave from the generating device of the same(30) and the heart sound from the device for collecting the heart sound(40).
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