The statement by Russia and China comes as Mr Hu is on a three day visit to Russia to promote trade and energy links
China and Russia are urging Iran to meet United Nations demands regarding its nuclear programme.
Russia's President Vladimir Putin and China's Hu Jintao jointly said they wanted to find a "mutually acceptable solution" to Iran's "nuclear problem".
Both nations - UN Security Council permanent members - said disputes over Iran and North Korea's nuclear projects should be resolved peacefully.
Iran has refused to cease uranium enrichment, prompting UN sanctions.
Over the weekend Iran in response said it would reduce its co-operation with the International Atomic Energy Agency.
The statement by Russia and China comes as Mr Hu is on a three day visit to Russia to promote trade and energy links.
The joint statement by Russia and China comes as the US claims that Iran's nuclear programme is a means to develop nuclear weapons.
