Shi Yidui: public information about his life and nationality is limited, and the main identity that can be confirmed at present is that of the author of Selected and Annotated Ci Poems of Xin Qiji. This book belongs to the category of literary appreciation. It selects and comments on the ci works of the Southern Song poet Xin Qiji, covering the background of the works, explanation of their meaning, and interpretation of their artistic features, and is suitable for general readers and poetry enthusiasts. This work suggests that Shi Yidui's writing focuses on close reading and appreciation of classical poetry; his discussion centers on the works themselves and seeks to understand them within their specific historical and literary contexts rather than offering vague general remarks. Since only this one work is available in the database, his overall body of writing, scholarly orientation, and style cannot yet be fully assessed, and more details await further public information. On the basis of what is currently known, he may be regarded as an editor and commentator who has written in the field of classical ci appreciation.