The two countries also voiced support for necessary and reasonable reforms of the United Nations and its Security Council in the statement.
China and Belarus agreed that developing countries should have more say in the Security Council, and that medium- and small-sized countries should have more accession to the Security Council in rotation, said the statement.
They called for comprehensive and democratic consultations to find out a package solution to the Security Council reform, with the interests and concern of all sides taken into consideration, rather than setting a timetable for the reform or advancing immature motions forcibly.
The two countries also voiced their common stance on human rights, opposing double standard or politicization on human rights, said the statement.
According to the statement, Xi also invited Lukashenko to visit China when convenient for both sides.
They also witnessed the signing of a series of cooperative documents covering politics, culture, economy, technology, education, local government cooperation and other sectors.
In addition, the two leaders met reporters after their talks. Xi described the talks as "fruitful," saying the two leaders defined the key areas and direction for the two countries to deepen cooperation in the next period to come.
Xi said that the two sides agreed to take building the Silk Road Economic Belt as an opportunity to deepen all-round and practical cooperation between the two countries.
Both sides also agreed to, together with all peace-loving people in the world, firmly safeguard the fruits of the victory of WWII, jointly promote a more just and equitable international order and international system, and endeavor to realize the lofty ideal of ever-lasting peace for humankind.
For his part, Lukashenko pledged to strengthen all-dimensional cooperation with China and enhance communication and coordination with China on international and regional affairs.
Belarus supports and will actively participate in the China-proposed initiative of building the Silk Road Economic Belt, he said.
He also told reporters that the two countries will jointly commemorate the 70th anniversary of the victory against fascism and militarism.
Before the talks, Lukashenko held a grand welcome ceremony for Xi and his wife, Peng Liyuan, at the Independence Palace. He even personally went to Xi's car to meet the Chinese guests. Accompanied by Lukashenko, Xi reviewed the Belarusian honor guards.
On Sunday evening, Xi planted a spruce tree at the palace in token of the friendship between the peoples of the two countries.