There are 50 pieces of Three-Stage School scriptures among the Dunhuang documents. These can be classified into 30 types. An investigation of the catalogues, contents, and dates of the scriptures collected in Dunhuang temples, including P.3202, P.3869, P.4039, D0715, and BD14129, suggests that the Longxing Temple, Jinguangming Temple and the Sanjie Temple of Dunhuang once had collected the scriptures of Three-Stage School. The scripture catalogue of the Longxing Temple also indicates that the Three-Stage School scriptures that are among the Dunhuang documents might belong to the collection of the Longxing Temple.