US Secretary of State Antony Blinken has said China's possible involvement in Afghanistan could be "a positive thing".
He said this was if China was looking towards a "peaceful resolution of the conflict" and a "truly representative and inclusive" government, BBC reported.
China said it saw the Taliban playing an important role in the peace process and rebuilding of Afghanistan.
"No one has an interest in a military takeover of the country by the Taliban, the restoration of an Islamic emirate," said Mr Blinken, who was asked about the talks while on a visit to India.
He urged the Taliban to come to the "negotiating table... peacefully".
Nine Taliban representatives had on Wednesday travelled to Tianjin for the talks.
Violence has increased in Afghanistan with the Taliban taking control of large swathes of the country, as the US withdraws its troops ahead of a September deadline.