The Besson Zakki (in 57 volumes), one of the Buddhist iconographical publications, was compiled by Priest Shinkaku (1117-1180) in the latter part of Heian Era. As known well, Shinkaku quoted the writings of the four priests preceding him and arranged them in a regular sequence in the Besson Zakki. The whole set-up of this book appears to be in an excellent shape, revealing the author's aim and plan laid in the book. On perusing the book, however, we find some points still ambiguous. An attempt has been made here to make clear how far Shinkaku extended his authority in compiling this book by reconsidering the situations under which the Besson Zakki were brought into existence.