This paper reviews underwater archaeological exploration technologies outside of China, including traditional marine geophysical exploration technology based on acoustic, optical and electrical methods, unmanned underwater archaeological exploration technology, deep-sea archaeological exploration technology, remote sensing exploration technology and high-precision underwater exploration technology. Additionally, it introduces seven practical cases of underwater archaeological exploration technologies abroad. Five trends in the development of underwater archaeological exploration technology abroad are put forward: first, multi-source exploration of underwater archaeology; second, the increasing significance of deep-sea research in this field; third, integration with big data and artificial intelligence technology; fourth, monitoring and virtual restoration of underwater sites; fifth, international cooperation and knowledge sharing.

underwater archaeology  /  underwater cultural heritage  /  underwater archaeological exploration technology