After summarized the studies on the Uighurian "Avatamsaka Sutra" and reviewed the 40-volume edition and 80-volume edition "Avatamsaka Sutras", this paper reached a conclusion that the transcripts "The Ten Grounds" and "The Ten Samahis" in the collections of Taibei Fu Sinian Library were the same to the photo of the 80-volume edition "Avatamsaka Sutra" in Haneda Akira's collection published by Kudara Kogi and Oda Juten and can be spliced together. Through analysis of the postscript, volume name, section name, page header, and the like, this paper suggested that both the 40-volume edition and 80-volume edition Avatamsaka Sutras were An Zang's translations.