The current research deals with the geography and history of Sajestan. It tackes the Arabic – Islamic efforts which were made by the first Muslims to liberate this region. These military expeditions started since the role of the caliphate Omer bin AL-khatab till the Amoy authority and the beginning of Abbasid authority. Islam expanded among them which failed their mutiny.
According to these efforts, we divide the research into many sections . The first one involves the geographical position and their people whereas the second one talks about the Islamic, Arabic efforts during the two ages, AL-Rashid and AL-Amoy finally, we talked about the great efforts which were done by Muslims in order to expand the Islam in this region.