Chinese leader Xi Jinping is preparing to visit Moscow for a summit with Russia’s president in the coming months, according to people familiar with the plan, as Vladimir Putin wages war in Ukraine and portrays himself as a standard-bearer against a U.S.-led global order.

Beijing says it wants to play a more active role aimed at ending the conflict, and the people familiar with Mr. Xi’s trip plans said a meeting with Mr. Putin would be part of a push for multiparty peace talks and allow China to reiterate its calls that nuclear weapons not be used.