Abstract: This is a more detailed introduction of the language of Chinese Buddhismbased on our latest research of Buddhist Chinese, which is a modernChinese historical linguistic category applied to a form of written Chineseoriginated for and used in Buddhist texts, including the translations intoChinese of Indian Buddhist scriptures and all Chinese works of Buddhismcomposed by Chinese monks and lay Buddhists in the past. We attempt toanswer in this paper the following questions: What is Buddhist Chinese?What is the main difference between Buddhist Chinese and non-BuddhistChinese? What role did this language play in the history of Chineselanguage development? And what is the value of this language for theChinese Historical Linguistics?