Measurement system and measurement method

A measurement system that measures a grade of an excavated material generated from an underground tunnel, the underground tunnel being excavated by a tunnel excavator based on a mining plan of a mine planned based on primary grade data indicating an ore grade measured in a preliminary geological survey, which includes a boring survey, and primary position data corresponding to the primary grade data, the measurement system comprising:

• a grade measuring device that measures the grade of the excavated material generated from the underground tunnel, and measures a secondary grade data indicating a grade of the excavated material, by detecting an emission spectrum obtained by emitting light to the excavated material;
• a positioning device that acquires secondary position data indicating a measuring position of the secondary grade data, by receiving a reflected light of a light which is emitted to the tunnel excavator;
• and
• a processor,
• wherein the processor causes a storage to store the secondary grade data and the secondary position data in association with each other.