Dunhuang suicide note mainly refers to the scriptures and documents discovered by Taoist Wang in Dunhuang Mogao Grottoes in 1900. Dunhuang suicide note dates from the early Eastern Jin Dynasty to the mid-Northern Song Dynasty, and its contents are divided into religious books and secular books, including religious books, official and folk documents, China Four Books and non-Chinese documents, among which religious books account for the vast majority.

Dunhuang suicide note is an important research material for studying history, archaeology, religion, anthropology, linguistics, literature history, art history, science and technology history and historical geography related to medieval China, Central Asia, East Asia and South Asia. It has high value and plays an active and important role in promoting the development of Dunhuang studies.