Yang Zhanqing is a Chinese author whose biographical information is quite limited in publicly available sources; his birth and death years, place of origin, and educational background are not clearly recorded. What can be confirmed is that he wrote a work titled An Exposition of Laozi (Laozi Shuyi), which is classified under literary appreciation and offers explanation and interpretation of the Dao De Jing. Judging from the title and category, Yang's writing focuses on a step-by-step examination of Laozi's thought and a close reading of the text, combining annotation with appreciation for readers who wish to understand the Daoist classic more deeply. Since only this one work is held in the collection and there is no corroborating evidence about his life or academic career, it is difficult to assess the full scale or development of his writings. For researchers, An Exposition of Laozi can serve as an entry point into his interpretive approach; for general readers, it offers a way to appreciate the language and meaning of the Dao De Jing. Other details about Yang Zhanqing await further public information.