This paper is intended to explicate the philosophical meanings of Mencius's views of human rights, regarding his theories of human nature, moral practice, and people as the foundation of the state, as well as the kingly way and his humanism. Moreover, we try to analyze the classical discourse about human rights developed by Mencius. Although Mencius's idea about human rights was undeniably different from the universal views about human rights in the contemporary society, he was nevertheless a precious and classical model for those who care about human rights in the contemporary age due to his overall philosophical exploration of the meanings, concerns, thoughts and ideals of human rights.