Among those who interpreted the poetry of Li Shang-Yin in the early Qing Dynasty, Zhu He-Ling was the one that took the lead. He interpreted the poetry of Li Shang-Yin on Qian Qian-Yi¡¦s instructions. It was a time of dynasty changes and literary inquisition, similar to the late Tang Dynasty. The poetry of Li Shang-Yin, poet of the late Tang, was ambiguous and obscure, which provided an opportunity for Zhu who was in the same situation as Li-Shang-Yin to display his commentary ability. Zhu adopted the method of ¡§zhi ren lun shi¡¨ to interpret Li¡¦s poems, which is a method of understanding a person by researching the historical background. After ¡§Explanatory Notes of the Poetry Collection of Li Yi-Shan¡¨ was published, it evoked resonance among readers. Therefore, it is now an important book for studying Li¡¦s poems. If the process of how Zhu finished the book could be understood and the essence and features of the book could be outlined and summarized, it would be beneficial for researching the poet Li Shang-Yin and his poems. This dissertation is composed of five chapters. The first chapter- introduction- contains the purpose and method of the study. The life and characteristics of Zhu and the gist of ¡§Explanatory Notes of the Poetry Collection of Li Yi-Shan¡¨ were also introduced. The second chapter-the historical background of Zhu He-ling¡¦s interpretation of Li Yi-Shan¡¦s poems-indicates that the author wrote and developed the concept of shishi (¸Ö¥v) and bixin (¤ñ¿³) under the influence of the political and social environment and the academic atmosphere at that time. This chapter also discusses the process of how Zhu finished the book and compares the differences in different versions in order to highlight the outcomes of Zhu¡¦s studies. In chapter three-the style and structure of ¡§Explanatory notes of the poetry collection of Li-Yi-Shan¡¨- the style and structure of the explanation, interpretation and quotation in the book were analyzed. By doing this, Zhu¡¦s devotion to interpreting Li¡¦s poems and to preserving predecessors¡¦ works could be easily seen. Chapter four-the contribution and defect of ¡§Explanatory notes of the poetry collection of Li-Yi-Shan¡¨-depicts the contribution and defect of the book for those who study Li Shang-Yin¡¦s poems. Chapter five-conclusion- summarizes the main ideas from chapter two to four in the hope that the whole picture of ¡§Explanatory notes of the poetry collection of Li-Yi-Shan¡¨ could be understood.