In academia, although there is an agreement that Huisi established Tiantai Philosophy while living in the Big Su Mountain, so far there is still a lack of understanding of the Jingju Monastery. In this article, based on the historical literature and lapidarian record, the author demonstrated that the relationship among Huisi, Zhiyi and Jingju monastery from eight aspects of research. It is fully proved that the Big and Little Su Mountain is the origin of Tiantai Philosophy, whereas the Jingju Monastery is the birthplace of Tiantai Buddhism Sect earlier than Guoqing Monastery.
