I have studied Buddhism for more than twenty years, and taught it especially Tien-tai school in college or graduated school for many years too. I decided to study the founder of Tien-tai school Master Chi-yi's "The Three Great Volumes" four years ago. The first proposal "A new commentary on Lotus Sutra's Shuan-yi" had been completed in October 1995. This is the second one: "A Study on Maha Tsi-kuan". There are eleven works to be done in this study as following: 1. The new mode of punctuation and paragraphing makes the study of the original text easier and clearer. 2. Source: Examine the sources of the quotations from sutras and sastras in the original text. The scholars can study profitably after they have paid attention to the quotations. 3. Summarizing the content: While summarizing the content, bring out its meaning concisely and to the point. 4. Preface: Discuss in the preface of the important sections so that the reader can be first to clear about the outline (of the work). 5. Explanatory: In order to facilitate understanding and study add explanatory under the sections difficult to understand. 6. Table: meaning of the text in the table helps to understand the meaning of the original text. 7. Collection of notes: Collect selected important notes and commentaries. 8. On the basis of important literatures constituting annotations, the difficulties regarding the terms are to be overcome. To explain difficult Chinese characters use philological works such as "Erh-ya", "Shuo-wen" etc. 9. According to modern scientific thoughts expound the lofty meanings of the subtle sayings of "The Lotus Sutra's Shuan-yi". 10. Notes in the brackets: To make the understanding of the original text clear put the supplementary material added to the text proper within square brackets [],but put the brief explanatory notes within parenthesis (). 11. For the convenience of the readers Chinese-Sanskrit and Sanskrit-Chinese indexes have been provided. This study is very useful for scholars who want to study Tien-tai school and those who are interested in meditation.