By trying to understand the background and content of ”Tong Zhi Lue”(通志略), the object of this study is to analyze the characteristics and scientific spirits of the writing methodology of Zheng Qiao(鄭樵)in writing the ”Tong Zhi Lue”. This article includes the following five parts. Introduction, Zheng Qiao's life, The background and characteristics of ”Tong Zhi Lue”, Study of the scientific methodology used in ”Tong Zhi Lue” and Conclusions.