During a meeting with Samoan Prime Minister Tuilaepa Sailele Malielegaoi, Xi said China will continue to support the country's efforts to develop its economy and improve people's livelihoods.
Also, China will safeguard the just interests of South Pacific countries in international and regional affairs, Xi added.
Xi said he appreciates the prime minister's contribution to developing bilateral relations.
He said that China treasures its traditional friendship with Samoa and praises the country for firmly adhering to the one-China principle.
China is willing to seize the opportunity of jointly building the BRI with Samoa, and will expand pragmatic cooperation in various areas, Xi added.
The Samoan prime minister expressed his country's support for the BRI.
He said Samoa is willing to expand bilateral cooperation in areas such as trade, investment and tourism within the framework of the BRI.