This paper tackles the character of the sahabi Abdullah bin Abbas and his military administrative and political acts It concentrates on his activity during th Umayyad era. It also deals with his growing up accompanying the prophet (PBUH) his relation with caliphs and role in the jihad in Morocco , Tabaristan, and Constantinople, The paper has also shown his stance towards the sedition during the era of the caliph Othman and role in the battle of Al-Jamal and Safyeen, as well as his relation with the caliph Muawiya and other caliphs who succeeded him in addition to Abdullah bin AL-Zubair and his followers , The paper come in a brief form , it is divided into paragraphs to be as complete as possible,