Among the Arabo-Persian sources on the history of the Seljukid state the work of Najm al-Din Abu’l-Reza al-Qummi “Tarih al-Wuzara” is definitely the least which is known to Russian researchers. At the same time this monument completed by the author in 1189 contains a rich array of information about the political history of Iraq, Iran and neighboring regions, especially in the 12th c. In our study, we would like to draw attention to what information and to what extent this historical source provides about the history of Khwarazm during the reign of the Anushteginid dynasty there. From our point of view, this kind of research is important primarily for the reason that it was in the 12th c. that Khwarazm not only gained independence as part of the power of the Seljuk Sultan Sanjar, but also after the death of the latter became one of the main contenders for the role of the center in the annexation of the former possessions of this ruler. The period of gradual transformation of Khwarazm into one of the most powerful states of the Middle East begins in the second half of the 12th c. It is extremely important to highlight the data that could contain the work of al-Qummi on this issue. In this regard, the appeal to this historical source is able to correct some of our ideas about the political history of this state education in the 12th c. The research of this kind is also important because of the fact that many arabo-persian historical works of the 12th c. are lost, and the official historiography of the Anushteginid dynasty in Khwarazm almost has not survived to present day. This situation requires researchers to pay more attention to the monuments of the 12th c., the purpose of which was not to describe directly the history of Khwarazm, but to include more or less information on subjects of interest to us. “Tarih al-Wuzara” is attributed to these arabo-persian sources and we try to reveal in this article the informational content of this monument in relation to the history of Khwarazm.