Solomon Islands' Prime Minister Manasseh Sogavare is travelling to China for his first official visit.
That follows the Solomons controversial switch in diplomatic links from Taiwan to Beijing.
Solomons' government said Mr Sogavare was travelling at the personal invitation of President XI Jinping.
A number of agreements are set to be signed by both governments, including arrangements on education, economic and technical co-operation and foreign affairs.
The prime minister's office said those agreements would strengthen and enhance co-operation.