Introduction to the "Nanhai No. 1" water cultural relics protection achievement exhibition: Since Nanhai No. 1 has been sleeping on the seabed for more than 800 years, many precious cultural relics have been damaged to varying degrees. At the same time, it is necessary to separate the cultural relics from the seawater environment. Conservation personnel carry out professional conservation treatment. Through actual objects and comparative pictures, the state of cultural relics before and after protection treatment is displayed.