The history of world conquerors is one of the basic materials for studying Mongolian history in the13rd century. The most valuable part of historical materials is the history of Genghis Khan and his descendants in the first volume, the history of Mongolian officials in Persian region in the second volume 26-3 1, and the history of Tuo Lei, Mongolia and Xuliewu in the first seven chapters of the third volume. Because these parts are written by the author according to the first-hand materials he has heard and heard, later historical works, such as La Stoudine's Collection of History and Baal Hebrews' A Brief History of the World, have adopted the above parts in large sections. In addition, the descriptions of the first volume of History of Uighur, the second volume of History of the Dynasty of Hua La Zi Mo, and the first and second volumes of History of Qidan (Western Liao) are also of great value to the study of the history of Uighur, Central Asia and Western Liao.