With the rapid development of China's social economy, new words are emerging endlessly. Neologisms are not only an important way for foreign students to understand Chinese society and culture, but also an important way for them to learn Chinese. Therefore, they should be seen as important content that cannot be ignored in Chinese teaching. Most middle and advanced-level students still keep a positive attitude towards the use of new words. They are eager to learn new words, but they often have problems using them. This paper will explain the necessity for foreign students to learn new words and the position and role of new words in teaching Chinese as a foreign language. Finally, it puts forward some suggestions for the selection and teaching methods of new words in Chinese teaching.