Letters from Zeng Guofan is a collection of Zeng Guofan's letters in the middle of Qing Dynasty19th century. This collection of letters records Zeng Guofan's Hanyuan career and military career from 30 years of Qing Daoguang to 30 years of Tongzhi 10, with nearly 500 letters. The content involved is extremely extensive, which is a vivid reflection of Zeng Guofan's main activities and the way of governing politics, family and learning. Zeng Jiashu's writing is calm, free in form, free in thought and writing, full of true knowledge and kind words in plain daily life, and has strong persuasiveness and appeal. Although there are few works handed down from ancient times, there is only one family letter that can reflect his knowledge and moral cultivation. As a famous Neo-Confucianism and litterateur in Qing Dynasty, Zeng Guofan was very particular about the format of letters, which showed his sincere and rigorous style.