The meeting was held at President Rouhani's residence and
the two discussed major regional and international developments, according to IRNA.
Later in the day, President Rouhani is to hold separate meeting with his counterpart from Uzbekistan Islam Karimov, Indian Minister of External Affairs Sushma Swaraj and Iranians residing in Tajikistan.
The Iranian President arrived in Tajikistan on Wednesday to attend the 14th summit meeting of the SCO.
He is in Tajikistan on the second leg of his five-day regional tour which had earlier taken him to Kazakhstan, for the first time since he took office in August 2013.
President Rouhani is accompanied by a high-ranking political and economic delegation including several cabinet members.
On the sidelines of the SCO summit, President Rouhani is to hold separate meetings with leaders of the member states.
The Shanghai Cooperation Organization or SCO is a Eurasian inter-governmental organization which was founded in 2001 in Shanghai by the leaders of China, Kazakhstan, Kyrgyzstan, Russia, Tajikistan, and Uzbekistan.
The Organization has currently six full members. Iran, Mongolia, Pakistan, and India are observer states and SCO’s dialogue partners include Belarus, Sri Lanka, and Turkey.