A superconducting magnetism measuring apparatus is provided which is capable of favorably measuring a faint degree of magnetism generated in the cervical or waist part of a subject to be measured with no need of the neck or waist of the subject being bent forward. Its sensor cylinder (10) is arranged of a four-sided cylindrical shape having a width along the y direction of not smaller than 5 cm and not greater than 20 cm and a width along the x direction of not smaller than 5 cm and not greater than 20 cm. One side at the distal end (10c) of the sensor cylinder (10) is moderately curved to project at the center not smaller than 0.5 cm and not greater than 4 cm from both the upper and lower ends along the y direction. This allows the side at the distal end of the sensor cylinder (10) to come into direct contact with the cervical or waist part of the subject when the neck or waist remains not belt forward, whereby a faint magnetism generated in the spinal cords or nerves of the subject can favorably be measured.
