Abstract: Anthologies of Song Dynasty collected in Siku Quanshu marked some changes in volume class numbers of some intermediate copies, such as the manuscript of Siku Academy, Ge edition, Wuyingdian edition, transcripts and synopsis, etc. These deviations were caused by several reasons. Some volumes were cut off according to the imperial edict or to be in accordance with the synopsis, and some were deleted as the same contents were reedited. The deviations of volumes reveal the extraordinary value of the early versions. It also exposes that seven kinds of Ge edition aren’t entirely based on the same original edition. Besides, the paper partly adjusts scholars’ negative opinions on the collecting work of Siku Academy.

Key words: Siku quanshu, Yongle Dadian, Anthologies of t Song Dynasty, Volumes