Abstract : The science of hadith was the basis of all the Islamic sciences and instructions in the beginning centuries . so , some schools of hadith were founded in different cities such as baghdad . this region has seen a spreed existence of scientists and narrators of hadith since the third and specially the froth centuries . The beginning of the activities of the school of baghdad is thought to be in the time of Imam sadegh . in this period , despitehadith , cognition and discourese problems mere attended too . great men such as ho shamebne hakam , you nesebne abdorrahman and mohammadebne ale omai are some found ders this school. Factors such as innocent aemmeh , their representatives specially the four secretaries of the guardiam oftime , the government sectarianism caused the spreed of shiite and the devlopment of the school of baghdad . With over throw of alebouyeh shia dynasty and the advet of sonny saljoug descendants , the school of baghdad missed its former runnings . Key words : The school of baghdad Disting nished men of science Speakers Narators of hadith Juris prudents Works Results