Three-dimensional hardness distribution measurement method and three-dimensional hardness distribution measurement system

A three-dimensional hardness distribution measurement system, comprising:

• a cutting unit that cuts evenly a surface of a member to be measured;
• an observation unit that images the surface having been cut by the cutting unit;
• a hardness measurement unit that pushes an indenter for a hardness test into a plurality of points on the surface having been imaged by the observation unit;
• and
• a control unit that controls at least the cutting unit and the hardness measurement unit,
• cutting by the cutting unit, imaging by the observation unit, and hardness measurement by the hardness measurement unit being repeated, wherein
• the control unit:
• controls a cutting depth of the surface to a predetermined constant amount, the cutting depth being made by the cutting unit;
• and
• controls indentation depths of the indenter at the plurality of points to a predetermined constant amount, the indentation depths being made by the hardness measurement unit.