To provide a circulation hole member capable of efficiently generating turbulence in a circulation hole and efficiently bringing fluid into contact with barrier walls.

The circulation hole member has barrier walls formed of a ceramic sintered body and has a plurality of circulation holes segmented by the barrier walls. The member includes a plurality of cross-sectional area reduction portions mutually spaced midway from one end to the other end along the axial direction of the circulation holes, the cross-sectional area reduction portion where a cross-sectional area of the circulation holes on a cross section perpendicular to the axial direction gradually decreases and then gradually increases.