本文的主旨是針對《通鑑綱目(卷一)》與《資治通鑑‧ 周紀(卷 一到卷五)》同時期條目的詳略、異同、取捨關係， 做一初步的探察比較，嘗試歸納舉例朱熹在「增損檃括」前期文獻時，一些較常使用的原則或方法。大體來說，剪裁、改寫的使用比率明顯高於增益，不過「增損檃括」並非只是形式上的文字修整，其中也有朱熹對《通鑑》的重新詮釋和對話。而朱熹和司馬光在學術和史觀上的若干不同想法， 也從《通鑑》和《通鑑綱目》的差異中反射出來。

This article primary intention is aims at the clauses of“ Zi Zhi Tong Jian Kang-mu(chp.1) ” and “ Zi Zhi Tong Jian:period of zhou(chp.1~5) ” Simultaneously the detail and sketchy , the similarities and differences, the choices relations, do preliminary one search observe the comparison, try to generalize Ju Si the preliminary literature, some often use principle or method.Broadly,the trimming and rewriting use ratio is higher than the gain obviously,but the“ Zeng Sun Yin Kuo(增損檃括)” is not only polishing literature formally, that including Ju Si’s interpretation and talks to“ Zi Zhi Tong Jian” . Ju Si and Si Ma Guang in academic and history viewpoint certain different ideas, Also from“ Zi Zhi Tong Jian” and "Zi Zhi Tong Jian Kang-mu" in the difference to reflect.