He was quoted by the Interfax news agency as saying that the talks in Beijing would be "thorough", at a meeting in Moscow with China's top diplomat, Wang Yi.
Putin will attend the third Belt and Road Forum after an invitation by Xi during a high-profile visit to Moscow in March.
Putin last visited Beijing in February 2022, days before the invasion, where he and Xi announced a 'no limits' partnership. Moscow says this does not mean a military alliance, however.