"We support Mr. Kofi Annan's plan and believe that the plan is the only way to get out of this situation," Salehi said in a meeting with Turkish Deputy Foreign Minister Halit Cevik in Tehran on Tuesday.
He expressed Iran's readiness to prepare grounds for talks between the Syrian government and the opposition, and expressed hope that Syria would move towards stability.
Annan brokered a six-point peace plan earlier this year, but it has struggled to gain traction on the ground.
Terrorists and rebels widely supported by the US, Saudi Arabia, Qatar and Turkey have disregarded the cease-fire that stood on top of Annan's plan and was to begin in April.
Syria has been experiencing unrest since March 2011 with organized attacks by well-armed gangs against Syrian police forces and border guards being reported across the country.
Hundreds of people, including members of the security forces, have been killed, when some protest rallies turned into armed clashes.
The government blames outlaws, saboteurs, and armed terrorist groups for the deaths, stressing that the unrest is being orchestrated from abroad.
In October 2011, calm was eventually restored in the Arab state after President Assad started a reform initiative in the country, but Israel, the US and its Arab allies are seeking hard to bring the country into chaos through any possible means. Tel Aviv, Washington and some Arab capitals have been staging various plots in the hope of increasing unrests in Syria.
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