The Three Notes on Historical Records is a guide to Pei Qian's Collection of Historical Records in the Liu and Song Dynasties, Sima Zhen's Research on Historical Records in the Tang Dynasty and Zhang Shoujie's Three Notes on Historical Records in the Tang Dynasty. Pei Qian's notes are more detailed, Sima Zhen collected a batch of notes, and Zhang Shoujie made a detailed investigation and comparison. These three annotations are of great value for understanding and studying Historical Records.