Chinese characters teaching have been the weak link of Teaching Chinese as a Foreign Language for a long time. As Chinese visual symbol system, Chinese characters manifest the immense rationality and logicality, which means form of the written character, is fixed and that specific character is used for specific purpose. At the same time, Chinese characters have strong word-formation power. From the perspective of Chinese character itself, it is the organic entity of form, sound and meaning, which is taking form as core, meaning as content and sound as cover. What's more, Chinese character is the carrier of the most fundamental and profound culture. TCFL, if teachers neglect the features of Chinese characters, often makes it hard to study it. Therefore, in order to improve the level of TCFL, teachers should have foothold in features of Chinese characters, be on the basis of font, sum up the pronunciation rules and then analyze the meaning.