Subsea mining refers to the process of utilizing specialized equipment to extract mineral resources from deep-sea regions. These regions are rich in both metallic and non-metallic mineral resources, including polymetallic nodules, cobalt-rich crusts, and seafloor hydrothermal sulfides. These resources are predominantly located on the seafloor at depths exceeding 2000 meters and serve as a potential supplement to terrestrial resources. Through advanced underwater robotics, drilling equipment, and remote-control technologies, deep-sea mining enables efficient exploration, extraction, and transportation of minerals in extreme environments.