To provide a method for producing an element for neutron dosimetry that is sensible in a range of a desired neutron dose and capable of immediately measuring it.

The method for producing an element for neutron dosimetry used for measuring a dose of neutron includes: a step for preparing a permanent magnet which becomes an element for the neutron dosimetry and is magnetized in a predetermined direction; and a sensitivity adjusting step for adjusting the sensitivity for detecting the neutron dose of the permanent magnet by deflecting a neutron sensitivity range of the permanent magnet towards a low neutron dose side.