Investigation on Karaj Abu-Dolaf Khanqahs base on Written Sources and Archaeological Evidence

City of Karaj Abu-Dolaf is one of the important cities in Islamic period which formed in early Islamic period then got prosperity in middle centuries. Knowledge about this city was limited to written resources till three decades ago. At present, we have more information about its location and remains through enough archaeological surveys as well as study of texts. One of the most important remains of it are Khanqahs. Khanqahs were constituted as centers for teaching the bases of religious learning and the principles of the Sufi orders from the fourth century in Islamic lands. Besides the city of Karaj Abu-Dolaf had several Khanqahs, so the aim of this research is to investigate those through archaeological survey then documents and texts. This research has three questions as following: 1. what time is supposed to formation and development of Khanqahs based on written documents and historical evidence? 2. What role documents and archaeological evidence has in coincidence of Karaj place with Astaneh city? 3. What were the location of Khanqahs in spatial structure of Karaj city? The approach of this article is historical-descriptive-analytical and information was obtained via documentary and field researches. Till now, no research has done about Karaj Khanghahs and based on documents and archaeological surveies, in addition to coincidence of current location of Astaneh city with old city of Karaj Abu-Dolaf, we can state Khanghahs of Karaj city were parts of spatial structure of city and sustained its functional relations with the architectural structures and remains after city’s decline.