Daular Khwarazmian, wacce aka kafa a Iran, ta dade har sai da Mongol suka mamaye karkashin Genghis Khan .A shekara ta 1218, daular Mongol da ke fadada cikin sauri ta yi iyaka da yankin Khwarazmian.Ala ad-Din Muhammad, shugaban Khwarazmian, ya fadada daularsa a mafi yawan kasar Iran, ya kuma ayyana kansa a matsayin shah, inda ya nemi amincewar halifan Abbasiyawa Al-Nasir, wanda aka ki amincewa da shi.Harin Mongol na Iran ya fara ne a shekara ta 1219 bayan an yi masa kisan kiyashi a ofishin jakadancinsa zuwa Khwarezm.Mamayen ya kasance m kuma cikakke;An lalata manyan garuruwa irin su Bukhara, Samarkand, Herat, Tus, da Nishapur, kuma an yi musu kisan kiyashi.Ala ad-Din Muhammad ya gudu ya mutu a wani tsibiri a Tekun Caspian.A lokacin wannan farmakin, Mongols sun yi amfani da ingantattun fasahohin soja, ciki har da yin amfani da rukunin katabus na kasar Sin, da yuwuwar bama-bamai na foda.Sojojin kasar Sin, wadanda suka kware a fasahar foda, suna cikin sojojin Mongol.An yi imanin cewa nasarar Mongol ta gabatar da makaman foda na kasar Sin, ciki har da huochong (turmi), zuwa tsakiyar Asiya.Littattafan gida na baya-bayan nan sun nuna makaman foda irin naChina .Mamayewar Mongol, wanda ya ƙare a mutuwar Genghis Khan a 1227, ya kasance mummunan rauni ga Iran.Ya haifar da babbar barna, ciki har da sace-sacen garuruwa a yammacin Azerbaijan .Mongols, duk da cewa daga baya sun musulunta, suka koma cikin al'adun Iran, sun yi barna maras misaltuwa.Sun lalata ilimi, al'adu, da ababen more rayuwa na Islama na ƙarni, sun lalata birane, kona ɗakunan karatu, da maye gurbin masallatai da gidajen ibada na Buddha a wasu yankuna.^[38]Har ila yau mamayewar ya yi mummunar tasiri ga rayuwar fararen hula na Iran da ababen more rayuwa na kasar.Rugujewar tsarin ban ruwa na qanat, musamman a arewa maso gabashin Iran, ya kawo cikas ga tsarin matsugunan, wanda ya kai ga yin watsi da garuruwan noma da dama.^[39]Bayan mutuwar Genghis Khan, wasu kwamandojin Mongol sun yi mulkin Iran.Hulagu Khan, jikan Genghis, shi ne ke da alhakin faɗaɗa ikon Mongol zuwa yamma.Amma a lokacinsa, daular Mongol ta rabu gida biyu.Hulagu ya kafa daular Ilkhanate a Iran, jihar da ta balle daga daular Mongol, wadda ta yi mulki tsawon shekaru tamanin kuma ta zama Farisa.A shekara ta 1258, Hulagu ya kwace Bagadaza ya kashe halifan Abbasiyawa na karshe.An dakatar da fadadasa a yakin Ain Jalut a Palastinu a shekara ta 1260 ta Mamelukes.Bugu da ƙari, yaƙin neman zaɓe na Hulagu akan musulmi ya haifar da rikici da Berke, ɗan musulmi na Golden Horde , wanda ke nuna tarwatsewar haɗin kai na Mongol.Karkashin Ghazan (r. 1295–1304), jikan Hulagu, an kafa Musulunci a matsayin addinin jiha na Ilkhanate.Ghazan, tare da wazirinsa na Iran Rashid al-Din, sun fara farfado da tattalin arziki a Iran.Sun rage haraji ga masu sana'a, inganta aikin gona, dawo da ayyukan ban ruwa, da inganta hanyoyin kasuwanci, wanda ya haifar da karuwar ciniki.Wadannan ci gaban sun sauƙaƙe mu'amalar al'adu a duk faɗin Asiya, wanda ya haɓaka al'adun Iran.Wani sakamako mai ban mamaki shi ne fitowar sabon salon zanen Iran, hade da abubuwan fasahar Mesofotamiya da na kasar Sin.Duk da haka, bayan mutuwar dan uwan ​​Ghazan Abu Said a 1335, Ilkhanate ya shiga yakin basasa kuma ya rabu zuwa kananan dauloli da dama, ciki har da Jalayirids, Muzaffarids, Sarbadars, da Kartids.Karni na 14 kuma ya shaida mummunan tasirin Mutuwar Baƙar fata, wanda ya kashe kusan kashi 30% na al'ummar Iran.^[40]