A highly precise, and simple and easy calibration function of a magnetocardiographic measurement apparatus is provided. A magnetocardiographic measurement apparatus includes: a magnetic sensor array； and a magnetic field acquiring unit acquiring environmental magnetic field measurement data measured by the array in response to the array being turned such that the array faces a plurality of directions in an environmental magnetic field； a calibration parameter calculating unit using the environmental magnetic field measurement data to calculate a calibration parameter for calibrating measurement data measured by the array in magnetocardiographic measurement of a subject； a calibration parameter storage unit storing the calibration parameter； a calibration calculating unit using the calibration parameter to calibrate the measurement data； and a data output unit outputting the measurement data. The array has a plurality of magnetic sensor cells arrayed three-dimensionally, and each capable of sensing a magnetic field in three axial directions.
