The thoughts of Kang Youwei, Liang Qichao, Tan Sitong and Yan Fu are all aimed at maintaining the rule of the Qing Dynasty, but they are all aimed at political reform. It is the country that walks out of the predicament. The difference lies in: Kang Youwei's masterpiece "Confucius' Political Reform Examination" talks about combining western capitalist political theory with China's traditional Confucianism to promote his political reform thought, while Liang Qichao advocates that "changing the world is an axiom" and "civil rights must be advocated". What he said is that the people are no longer subjects under feudal autocracy, but the main body of the country and enjoy the rights of citizens. Yan Fu systematically introduced western evolutionism and bourgeois economic theory to China, and explained the Reform and Reform with western ideas. Tan Sitong, on the other hand, was the most radical one in the reform, believing that absolute monarchy was the root of all evil, and putting forward that "bad people should be killed". While criticizing the autocratic system, he also put forward the idea of political, economic and political reform to develop capitalism.