Etymological character is a term of traditional linguistics.The understanding and use of etymological character shows a certaindeviation in terms of modern linguistics system. There is a contradictionin the use of etymological character in traditional documents, both in itsconnotation and denotation. So the term of etymological character even in Encyclopedia of China needs to be searched out. In fact, the form of anetymological character can integrate into its meaning, and shows a kind of inner essence. Of course, the characteristics of etymological character should be followed in the study of dialect.