After his death, the evaluation of Zeng Guofan formed a sharp polarization contrast with the passage of time. Some people think that Zeng Guofan brutally suppressed the Taiping Heavenly Kingdom uprising, that is, some people accused him of killing too many people and nicknamed him "Zeng shaved his head" and "Zeng Butcher". In the movement to suppress the Taiping Heavenly Kingdom, he and his younger brother engaged in corruption. Poor handling of Tianjin's religious plan, worshipping foreign things and admiring foreign things, was once denounced by some revolutionaries after the Revolution of 1911 as "the first case of spot justice". Zeng Guofan's actions in the "Tianjin Religious Plan" proved that Zeng Guofan was a traitor and traitor, but he made some achievements in the Westernization Movement.

Liang Qichao mentioned Zeng Guofan in the preface of Zeng Zheng Wen Gong Jia Yan Chao. "Is it only built by modern people who have never seen it before?" Not only in China, but also in the world. . However, Wen is not an unparalleled genius. He is called the slowest of all sages. His suffering will also be the middle of his life; Those who are immortal in virtue, who have made contributions and made great achievements are determined to be refined, but they are trapped in it, knowing what they have done, but going forward bravely, going through all kinds of difficulties and obstacles without setbacks, not seeking immediate results, accumulating inch by inch, accepting vanity, being diligent, steadfast, sincere, handsome, brave and diligent.

Mao Zedong and Jiang Zhongzheng are two famous figures in the modern history of China. They spoke highly of Zeng Guofan. Mao Zedong said, "Only serve Ceng Wenzheng." .