Tang yan jiu focuses on research related to the Tang Dynasty and its relevant eras, covering traditional academic issues in various aspects such as history, geography, art, archaeology, language, literature, philosophy, religion, politics, law, economy, and society. Besides scholarly papers, it features newly discovered historical materials, book reviews, and academic information. Typical columns include essays and book reviews, as well as special columns on different themes, such as "Text Production and Book Culture" for Volume 28, and "Voices · Characters · Vocabulary: An Interpretation of Dunhuang Documents" for Volume 27. The founding chief editor is Rong Xinjiang.