Compounding Binding words, transliteration words, and onomatopoetic words of Chinese language into the kind of onomatopoeia. Each word of its inside is called the character sued for onomatopoeia is thought to only record the one syllable sound without meaning. The result reveals, these characters are all independent morpheme, can all become words independently. The feasible reason of this research is, first, cut character temporarily ingrammar words. The second, word feature is different from word using. The third, Chinese character has its feature oneself ---- morphological features. This paper analyzes down from a point is identical with linguistics western. Enumerate seven reasons of the needing for internal word. Illustrate its morpheme, morphological feature, and use with examples. The researcher has the experience foundation that analyzing “hé”（和）, in idea has the commonality cognition - -morpheme between Chinese and English, the attention of the independent unit of Chinese - -individual feature of Chinese characters. This research can reset Chinese character’s location in linguistics.