The Qi xin chao 起信抄 fragment held by the Haeinsa 海印寺 in South Korea comprises four fifth-volume sheets （sheets 11, 12, 21, 22） and two seventh-volume sheets （sheets 25, 26）, totaling six sheets and approximately 3,600 characters. Its author and date of production are unknown. Research has suggested that, based on its form, it might be a part of Yanjun’s 延俊 ten-volume Qi xin lun yanao chao 起信論演奥鈔 from the Song dynasty. It has also been pointed out that it could be a reprint of the Xuzangjing 続蔵経, which was originally published by Ŭich’ŏn 義天 during the Koryŏ 高麗 period. This paper examines the fragment’s content and introduces its characteristics, concluding that it （1） is a commentary on the Qi xin lun shu 起信論疏 by Zongmi 宗密, and （2） draws from the Shi moheyan lun 釈摩訶衍論.
