Xie Fangde was one of the important people in note rhetoric studies in Song periods. His famous works are「Wanzhang Guifan」,「Tangong Jie」,「Tangshi Jie」. His dialectical rhetoric thoughts of critical rhetoric was mainly expressed between these relations of rhetoric was mainly expressed between these relations of rhetorical phenomenon: boldness and carefulness; euphemism and explicitness; epetition and simplicity; inheritance and innovation; vuIgArity and gentility, etc, which have unique views.