This paper points out the situation and some problems of the extant texts of the 7th Tiantai Patriarch Daosui’s 道邃 Zhiguan ji zhong yiyi 止観記中異義. It clarifies several characteristics of a text collected in the Shinnyozōhon 真如蔵本, viz. a 13th century manuscript held in the Eizan Bunko 叡山文庫, introducing its bibliographic information. In conclusion, the Shinnyozōhon has some overlapping parts with the text in the Manji dai Nippon zokuzōkyō 卍大日本続蔵経, which was edited by using various conventional versions as the base, but it also has contents that cannot be seen in that canon. Therefore, the Shinnyozōhon is a text superior to the existing versions of the Zhiguan ji zhong yiyi, and it is necessary to make a new edition based on this text and to complement those missing parts. Thus, it is important to solidify the basic materials of the Zhiguan ji zhong yiyi in order to more fully elucidate Daosui’s ideas about zhiguan 止観.
