Sanfu juelu 三輔決錄 "Definite account of the three metropolitan [commanderies]" is a geographical treatise written during the Later Han period 後漢 (25-220 CE) by Zhao Qi 趙岐 (108-201 CE), courtesy name Shanbo 山伯. The book describes the three regions around the western capital Chang'an 長安 (modern Xi'an 西安, Shaanxi), namely the commanderies Zuofengyu 左馮翊 and Youfengfu 右扶風, and the metropolitan commandery Jingzhao 京兆尹.
It focuses on the history of the noble families living in and around Chang'an and their influences on the court. The text includes moral judgments about individual persons. It is in fact a collection of short biographies, while geographical information is rather scarce.
During the Western Jin period 西晉 (265-316) Zhi Yu 摯虞 (d. 311 CE), courtesy name Zhongqia 仲洽, wrote a commenary to Zhao's text, Zhujie Sanfu juelu 注解三輔決録. The original text with a length of 7 or 10 juan was lost, but fragments preserved in encyclopaedias like Beitang shuchao 北堂書鈔 and Taiping yulan 太平御覽 were collected by Zhang Shu 張澍 (1776-1841). These are found in his series Eryoutang congshu 二酉堂叢書.