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From ancient times to the present, the search for treasures has been a shortcut for people to obtain wealth and one of the driving forces for human exploration. In the past, treasure hunters mostly focused on underground or inaccessible above-ground ruins. However, as countries gradually strengthen their control over above-ground and underground cultural relics and legally confirm that such cultural relics belong to the cultural and natural heritage of the country where they are located, the space for searching for treasures on land has become smaller and smaller. In the last century, with the invention of underwater breathing machines, people could easily dive into deeper oceans for exploration, and submarine sunken ships gradually "surfaced". There is a saying in the cultural relics market that "one sunken ship holds ten tombs" because an ordinary medium-sized merchant ship can carry more than 100,000 pieces of porcelain. Such a large number of cultural relics certainly has huge economic value. More and more countries and private companies are focusing on treasures that have been "sleeping" on the seabed for thousands of years. The global "shipwreck salvage craze" is heating up in various sea areas. According to UNESCO statistics, there are about 3 million undiscovered shipwrecks in the world's oceans. Most of these shipwrecks are concentrated in areas with relatively developed maritime traffic in history, such as the Mediterranean Sea, the route from Europe to North America, the route from China to Southeast Asia, and the route from China to Japan. According to UNESCO, any shipwreck that is more than 100 years old is a cultural relic with historical and cultural value. "No, lizard people, yes, they are attacking, run away..."