Letters from Zeng Guofan is a collection of Zeng Guofan's letters, which was written in the middle of the 9th century in Xianfeng period of Qing Dynasty. Letters from Zeng Guofan recorded Zeng Guofan's career in Hanyuan and martial arts for 31 years from the 31 years of Qing Daoguang to Tongzhi 11, with nearly 1,511 copies. The content involved is extremely extensive, which is a vivid reflection of Zeng Guofan's main activities in his life and his way of governing politics, family and learning. The writing of Zeng's family letters is calm and calm, free in form, random in thought, free in writing, full of true knowledge and good words in plain and homely life, and has strong persuasion and appeal. Although Zeng's works are few, only one family book can reflect his knowledge and moral accomplishment, thus winning the reputation of "the highest generation of moral articles" and becoming the last spiritual idol in China feudal society.