It is an extensive historical research about the glorious life of Hazrat Uthman (may God bless him and grant him peace) and the brilliant achievements of his noble caliphate. We begin with a description of the family background and pre-Islamic period of Uthman ibn Affan, and then we continue with how he converted to Islam and married Hazrat Ruqayyah, the dear daughter of the Messenger of God (peace be upon him), and his migration to Abyssinia. Then he deals with the deep relationship of Prophet Uthman with the Qur'an and talks about his time with the Prophet and his knowledge and wisdom, and we quote the descriptions and hadiths that have been received from the Holy Prophet in praise of the great position of Uthman and his virtues. In the next section, we will describe his life during the caliphate of Siddiq and Farooq - may God be pleased with them - and then we will recount in detail how he came to the caliphate and the way of his Imam in justice, asceticism and piety. In a readable discussion, we mention the moral and desirable characteristics of Hazrat Uthman in eighteen titles, and then we analyze and describe the financial and judicial policies and describe the glorious conquests of his time. Discussions in the administrative system and divisions of the country of the Ottoman era, the reasons and preconditions for the sedition of his martyrdom, the position of the Companions in the face of this unfortunate incident and the analysis of subsequent events are among other topics.