The Nanhai No. 1 shipwreck is an ancient wooden ship that crashed and sank while transporting goods on the maritime Silk Road in the Southern Song Dynasty (1127-1279 AD). It has important historical significance and research value. This study provides a theoretical basis for the protection of the Nanhai No. 1 shipwreck, and also provides data support for the long-term protection of wooden cultural relics, which helps to promote the development of cultural relics science and technology protection.