Abstract: A citizen is one that freely and equally participates in public life,one that rules and is ruled at the same time.In ancient Greece,a citizen is a political man,and constitution is directly related with the citizens.In modern Western countries,a man of nature becomes a man of law and organizes political life under the law,and right becomes the link between citizens and constitution.However,in China,which had a humiliated history once and now is heading for modernization,the concept of “the subject to the ruler” should give place to the concept of “citizen” in the constitutional construction,emphasizing responsibility and morality.During this complex and unique process,the changing citizenhood and the ways of expression would reflect the special characteristics of Chinese constitution.

Key words: citizen, constitution, tropes, right, responsibility