A biomagnetic field measurement apparatus according to the present invention comprises: a head part provided with
SQUID sensors (Superconducting
Quantum Interference Device) for measuring a magnetocardiogram, the sensors being arranged in a row in a right and
left direction at a lower end portion of the head part and being spaced apart by a predetermined space, and a non-magnetic liquid
coolant container for cooling the
SQUID sensors; an electronic circuitry part for controlling the
SQUID sensors and measuring a
signal; a
signal processing software part for acquiring and storing the
signal detected by the electronic circuitry part to a PC, calculating the signal and thus transforming the signal to a
magnetic signal or a current signal, then mapping and displaying the transformed signal; and a
bed part made of a non-magnetic material, mounted at a lower side of the head part to be spaced apart therefrom and provided with a platy sliding
bed for measuring a magnetocardiogram by using the SQUID sensors of the head part at a state that a man to be measured is laid thereon, a sliding rail for allowing the sliding
bed to move thereon in a front and rear direction, an up and down moving device for moving the sliding bed, for adjusting a measuring position of the man to be measured, in an up and down direction for adjusting the position of the SQUID sensors of the head part, a right and left moving device for moving the sliding bed in a right and
left direction, and a front and rear moving device for moving the sliding bed in a front and rear direction by a predetermined space.The biomagnetic field measurement apparatus according to the present invention has advantages that since SQUID sensors are arranged in a row and a magnetocardiogram is measured by moving the bed in a predetermined space, it is not necessary for the high-priced SQUID sensors to be provided a lot in comparison with a conventional biomagnetic field measurement apparatus, and thus the apparatus is inexpensive, structurally simple and able to be downsized, a space taken up can be reduced and maintenance thereof is facilitated.