"The second round of talks is most probably going to be held in Urumqi in China on July 30," said Ismail Qasimyar, a senior member of Afghan High Peace Council.
Qasimyar said delegations from China and the United States would observe the talks, as they did in the ground breaking first official meeting earlier this month.
Pakistan hosted first round of peace talk between Kabul and Taliban insurgents on July 7.It was a step towards ending more than 13 years of war in Afghanistan, in which the Taliban have been fighting the government.
Pakistani Prime Minister Nawaz Sharif described the first round of talks as a "breakthrough", adding: "This process has to succeed."
Pakistan is key to the process because of its historic ties to the Afghan Taliban leaders, who have used the Pakistan border region as a safe heaven.