To provide a mineral replenishing material derived from deep ocean water and sterilized without exerting influence on the useful minor mineral components.

Deep ocean water A is separated into plain water B and concentrated deep ocean water C by a primary electrodialyzer 1 furnished with an ion exchange membrane 11. The concentrated deep ocean water C is separated into concentrated mineral component D and concentrated saline water E by a secondary electrodialyzer 2 furnished with an ion exchange membrane 12 having excellent univalent ion selectivity. The concentrated mineral component D obtained by removing mainly univalent elements from the concentrated deep ocean water C is sealed in a retortable packaging material 6 and retorted to obtain the replenishing material.