The Islamic revolution of Iran has made an impact hath domestically and internationally ,especially in Islamic countries ,on different intellectual, political and social fields, Indonesia is one of the south eastern Asian countries that have a lot of historical similarities with Iran, It has more than 200 million Muslims and provides a proper ground for studying the impression of Islamic revolution, Moreover, Islamic revolution of Iran is progressive as a new religious movement in contemporary world, It is highly necessary to study such effects particularly in Islamic countries which have necessary grounds for change.

This dissertation has examined Islamism and repercussions ofIslamic revolution in Indonesia, Indonesia has a high strategic importance among south Eastern Asian countries. The first manifestations of Islam emerged in Indonesia by Iranian, Arab and Indian Muslim merchants and traders through business travels, Furthermore many Muslims especially Imams "descendants emigrated to distant areas particularly south east of Asia because of the pressures applied by Abbasi caliphs, Also the population has increased in this country since then, Interactions among leaders and organizations and also Islamic parties can be classified into three eras; first in the era of colonialism political groups and parties especially Islamic groups fanned to combat colonialism. In the second era, the era of independence, inconsistent policies were adopted against Islam by Suharto and Sukarno as the first leaders of the country after independence from Japan in [945, In the third era, post-Suharto era, Islamic parties emerged increasingly that coincided with the ruling ofYusofHabibi and Abdurrahman Wahid. Indonesia has a moderate Islam but Islamic revolution of Iran had its own effect on the development of an Islamic culture in this country, This study attempts to provide a comprehensive study about the effect of Islamic revolution of Iran on Indonesia and Islamism in an independent case study.