Participants emphasized the need to strengthen goodwill and expand practical cooperation across the frontier.
More than 20 world leaders attended the Tianjin gathering, including heads of state from China, Russia, India, Pakistan, Iran, and Central Asia.
Xi said that China and India are each other's development opportunities rather than threats, Chinese state news agency Xinhua reported.
Officials say the talks will also explore ways to promote stability and development in Afghanistan, which remains central to regional peace and economic integration.
The Kyrgyz side pledged to make commercial visa issuance easier, improve banking links, and facilitate transport routes for Afghan traders.
