Under the public criticism, Guo songtao reflected on the public opinion of scholar-bureaucrat. He thought that in the public opinion the majority with wrong idea attacked the minority with the right opinion. Public opinion was a kind of power to oppress people with different ideas. Four causes led to public opinion. Guo’s view of public opinion was closely related with his view of speech. Guo thought that the majesty should restrain public opinion, the chancellors should not get involved in public opinion, and the censure officials should be abolished. Guo cognized the west with the awareness of public opinion of Qing dynasty. He thought the character of king and the two-party-system generated good general mood of political discussion in England, while multiparty system generated bad general mood in France.