Constitutional Revolution and Sheikh Alraiis Qajar

Aim of this study is to assess the role of Abolhassan Mirza- Sheikh Alraiis Qajar in Constitutional Revolution. This paper is done through analytical- descriptive method based on library sources and a historical procedure. It studies the works and activities of Sheikh Alraiis Qajar. Findings and results of this study show that in spite of being a prince and being assigned to Qajar Family, he always worked against authoritarian government of Qajar, he is one of intellectuals who focused deeply on two forms of western Bourgeoisie. That is colonization and using the science and technologies of west. He believed that there is no disagreement between Islam and science and technologies of west. He stated that reason of decline in Iran is lack of unity among the Muslims and authority of the kings and foreign Colonization. Cooperation with Constitutional thinkers such as Seied Abdallh Behbahany and his speech against Qajar lurkers led to his imprisonment and punishment by the rulers in Bagheshah. Opposition with contracts of 1907 and 1919 are symbols of disagreement against Colonization.