Sasebo Port has a rich maritime history dating back to 1889, when the Imperial Japanese Navy established the Sasebo Naval District and the naval arsenal (now Sasebo Heavy Industries). Since then, the city has flourished as a vibrant port where naval and commercial vessels have gathered for more than a century.

As an international port located at the western gateway of Japan and close to East Asia, including South Korea and China, Sasebo Port welcomes cruise ships from Japan and abroad, serving as a gateway for visitors to explore the region's unique attractions.