fa گفتمان خلافت و سلطنت در سیرالملوک تخصصي تاریخ اسلام Islamic History پژوهشي Research This article tries to answer this questions what&rsquo;s the political ruling&nbsp; discourse in <em>Siyar al-Muluk</em> text about Abbasid Caliphate, and what relation does KhwajaNizam al-Mulk establish between it and Saljuk sultan?&nbsp;<br> This writer on her way to do this,studies and investigates some tales in <em>Siyar al-Muluk</em> which in them Abbasid Caliphate role is distinct. The results of this investigation show that KhwajaNizam al-Mulk considers a special relationship between Abbasid Caliphate and Muslim governments which isn&rsquo;t basically out of Sunnis knowledge system, but at some time due to some obvious reasons, he doesn&rsquo;t apply this kind of political manners about Saljuk government and Abbasid Caliphate. So he in the position of a ministry provides an evaluation plan in the structure of getting legitimacy from Caliphate legitimacy maker system in Sunnis world in his book.&nbsp;<br> &nbsp; خلافت عباسی, سیرالملوک, خواجه نظام الملک, سلطنت, سلجوقیان Abbasid Caliphate, Siyar al-Muluk, KhwajaNizam al-Mulk, Monarchy, Saljuks. 37 58 http://journal.pte.ac.ir/browse.php?a_code=A-10-2-100&slc_lang=fa&sid=1 Nayere Dalir نیره دلیر dalirnh@yahoo.com 1003194753284600169 1003194753284600169 Yes