First of all, Voltaire's thoughts were mixed with China's Confucianism. He highly praised China's Confucianism, such as people-oriented, people-oriented, and freedom of belief, because Voltaire was in the Renaissance and needed these thoughts as a theoretical basis. Yan Fu systematically introduced western classical economics, political theory, natural science and philosophy theory to China for the first time, and enlightened a generation of China people. Their similarity is the ideological enlightenment to feudal society, which broadens people's horizons and removes some obstacles for the development of capitalism. The influence on China can also be discussed in terms of ideology, politics and economy.