Abstract
Ambitions of Iran in developing technology of nuclear energy had attracted the states attention of the states which have technical experts in the nuclear field. China was one of these states which played a big role in its peaceful nuclear cooperation with Iran during 1980’s,1990’s .
With the increase of challenges between Iran and the West regarding crisis of Iran’s nuclear program during the first decade of 21st century, China presented its position insisting on a solution of that crisis by negotiating and diplomatic dialogue in order to avoid any military dispute which might face Iran. This is due to the economic interests of China as well as its interests in the field of oil and natural gas with the region and Iran in particular.