Rubuta ci gaba don wannan sakin layi - Jamhuriyar China da Masarautar Masarautar Iran a hukumance sun kulla huldar diflomasiyya a 1937. A shekara ta 1971, Iran ta amince da Jamhuriyar Jama'ar Sin (wanda Jam'iyyar Kwaminis ta kasar Sin ke mulki) a matsayin gwamnatin da ta dace ta kasar Sin, kuma ta kuma soke amincewar da ta yi wa Jamhuriyar Sin (tare da gwamnatin Kuomintang da ke Taiwan a yanzu) a matsayin kasa. A farkon shekarun Yakin Cacar Baki, Iran da Jamhuriyar Jama'ar Sin sun kasance a bangarorin da ke adawa da Iron Curtain, tare da Iran ta kasance wani ɓangare na rukunin Yammacin Turai da Amurka ke jagoranta daga juyin mulkin 1953
kuma China ta kasance wani bangare ne na Gabashin Gabas da Soviet ke jagoranta har sai da wannan ya rabu da shi a shekarar 1961 don haka ya kasance tare da Yammacin Yammacin har zuwa karshen Cold War.