Yan Fu is a modern enlightenment thinker. Yan Fu was an influential bourgeois enlightenment thinker, translator and educator in the late Qing Dynasty. He was one of the advanced China people who sought truth from the West in China's modern history. Yan Fu was born in a doctor's family. 1866, Yan Fu was admitted to his hometown Fuzhou Ship Administration School to study English and modern natural science, and graduated with honors five years later. From 1877 to 1879, Yan Fu and others were sent to study in Britain. After returning to China, Yan Fu transferred from the naval field to the ideological field, actively advocated the enlightenment education of western learning, and completed the famous translation of Evolution. His translation is different from Huxley's original work and Spencer's theory of cosmic evolution. In The Theory of Evolution, Yan Fu expounded his viewpoint of saving the nation from extinction by the biological evolution theory of natural selection and survival of the fittest, advocated inspiring people's strength, enlightening people's wisdom, promoting new people's morality, striving for self-improvement, and called for saving the nation from extinction.